Phương trình nào sau đây là phương trình bậc nhất hai ẩn?a) \(5x - 0y = 6\)b) \(0x + 0y = 3\)c) \({x^2} + 2y = 7\)d) \(\dfrac{x}{4} - \dfrac{y}{2} = 1\) (2024)

'; $("#alert_popup_dialog").html(innerHtml); } else { //Chua co the div alert_popup_dialog var html = '

'; $("#container").append(html); } } function displayMessage(title, msg) { makeDialog(title, msg); $("#alert_popup_dialog").show(); } function openNewWindow(url) { window.open(url, "", 'directories=yes,titlebar=yes,toolbar=yes,location=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes'); } function submitForm() { $("#submitResultForm").submit(); } function checkOption(question_id, display_answer) { var number_answer = $("input[name ^='question_']:checked").length; $("#number_answer").html(number_answer); var answer_choice = $("input[name ^='question_" + question_id + "']:checked").val(); $.ajax({ url: '/ajaxQuestion/checkQuestion', type: "post", data: ({ question_id: question_id, answer_choice: answer_choice }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data.success) { var answer = data.answer; $("input[name ='question_" + question_id + "']").attr('readonly', true); $("input[name ='question_" + question_id + "']").attr('onclick', ''); $("input[name ='question_" + question_id + "']").click(function() { return false; }); var point = data.point; if (answer === answer_choice) { displayPointNotification(point, question_id, true); $("#quickview_" + question_id).addClass("listgreen"); } else { displayPointNotification(point, question_id, false); $("#quickview_" + question_id).addClass("listred"); } if (display_answer === 1) { $("#p_question_" + question_id + "_" + answer_choice).attr('class', 'mab5 clred'); $("#p_question_" + question_id + "_" + answer).attr('class', 'mab5 clblue'); // $("input[name ='question_" + question_id + "']").attr('disabled', true); viewAnswer(question_id, 1); // $('#viewAnswer_link_' + question_id).click(); } } else { displayMessage('Thông báo', data.error); } } }); } function updateData(question_id) { $("#save_link_" + question_id).html(''); $("#save_link_" + question_id).html('Đã lưu'); $("#save_link_" + question_id).attr('class', 'save s12'); } var open_close_state = {}; function viewAnswer(question_id, with_short_answer) { var answer_choice = $("input[name ^='question_" + question_id + "']:checked").val(); if (answer_choice === undefined) { alert('Bạn cần trả lời câu hỏi để xem lời giải'); return; } if (open_close_state[question_id] === undefined) { open_close_state[question_id] = false; } if (open_close_state[question_id]) { $('#detail_answer_' + question_id).hide(); $('#viewAnswer_link_' + question_id).html('Xem đáp án'); open_close_state[question_id] = false; } else { var answer_choice = $("input[name ^='question_" + question_id + "']:checked").val(); $.ajax({ url: '/ajaxQuestion/getAnswer', type: "POST", data: ({ question_id: question_id, answer_choice: answer_choice, with_short_answer: with_short_answer, }), success: function(resp) { $('#detail_answer_' + question_id).show(); $('#detail_answer_' + question_id).html(resp); $('#viewAnswer_link_' + question_id).html('Ẩn đáp án'); MathJax.Hub.Queue(["Typeset", MathJax.Hub, 'detail_answer_' + question_id]); open_close_state[question_id] = true; } }); } } function viewTextQuestionAnswer(question_id) { if (open_close_state[question_id] === undefined) { open_close_state[question_id] = false; } if (open_close_state[question_id]) { $('#detail_answer_' + question_id).hide(); $('#viewAnswer_link_' + question_id).html('Xem đáp án'); open_close_state[question_id] = false; $('#short_answer_' + question_id).show(); } else { $.ajax({ url: '/ajaxQuestion/getTextAnswer', type: "POST", data: ({ question_id: question_id }), success: function(resp) { $('#detail_answer_' + question_id).show(); $('#detail_answer_' + question_id).html(resp); $('#viewAnswer_link_' + question_id).html('Ẩn đáp án'); open_close_state[question_id] = true; MathJax.Hub.Queue(["Typeset", MathJax.Hub, 'detail_answer_' + question_id]) $('#short_answer_' + question_id).hide(); } }); } } function toggleAnswerForm(question_id, is_text) { if (is_text) { $("#form_answer_text_" + question_id).show(); $("#form_answer_img_" + question_id).hide(); $("#q_" + question_id + "_tab_text").attr('class', 'active'); $("#q_" + question_id + "_tab_img").attr('class', ''); $("#answer_type_" + question_id).val(1); } else { $("#form_answer_text_" + question_id).hide(); $("#form_answer_img_" + question_id).show(); $("#q_" + question_id + "_tab_text").attr('class', ''); $("#q_" + question_id + "_tab_img").attr('class', 'active'); $("#answer_type_" + question_id).val(2); } } function browseFile(question_id) { $("#file_upload_" + question_id).click(); // selectAndUploadFile(question_id); } function selectAndUploadFile(question_id) { var fileSelect = $("#file_upload_" + question_id)[0]; var files = fileSelect.files; var formData = new FormData(); for (var i = 0; i < files.length; i++) { var file = files[i]; // Check the file type. if ((!file.type.match('image.*')) || (!file.type.match('image/*'))) { continue; } // Add the file to the request. formData.append('file_upload_' + question_id, file, file.name); formData.append('question_id', question_id); var xhr = new XMLHttpRequest(); // xhr.open('POST', '/upload_thionline.php', true); xhr.open('POST', '/ajaxQuestion/uploadImg', true); xhr.onload = function() { if (xhr.status === 200) { var data = jQuery.parseJSON(xhr.responseText); if (data !== null) { if (data.success) { var path = data.path; onUploadImgSuccess(question_id, path); } else { displayMessage('Có lỗi xảy ra', data.error); onUploadImgFailed(question_id); } } } else { displayMessage('Có lỗi xảy ra', 'Có lỗi xảy ra khi upload file,vui lòng thực hiện upload lại file!'); // alert(xhr.responseText); } }; addLoadingThumbnail(question_id); xhr.send(formData); } } function addLoadingThumbnail(question_id) { var html = "

"; $("#add_file_" + question_id).before(html); } function onUploadImgSuccess(question_id, path) { $("#add_file_" + question_id).prev().remove(); var html = "

"; $("#add_file_" + question_id).before(html); $('#del_link_' + question_id).live("click", function($e) { alert("xxx"); }); updateAnswerImgParam(question_id); } function onUploadImgFailed(question_id) { $("#add_file_" + question_id).prev().remove(); } function updateAnswerImgParam(question_id) { var value = ""; $('#form_answer_img_' + question_id + ' img').each(function(index) { if (value !== "") { value += ";"; } value += $(this).attr("src"); }); $("#answer_img_" + question_id).val(value); } function removeUploadedFile(question_id) { alert(question_id); $(this).closest('.fbGridItem').remove(); updateAnswerImgParam(question_id); } function toggleWriteAnswer(question_id, mode) { if (mode === undefined) { $('#div_answer_text_' + question_id).show(); } if (mode) { $('#div_answer_text_' + question_id).show(); } else { $('#div_answer_text_' + question_id).hide(); } } //Luu lời giải thành viên trong đó type: 1: text, 2: ảnh function submitAnswerMemner(question_id, type) { var text = ""; if (type === 1) { text = $("#answer_text_" + question_id).val(); } if (type === 2) { updateAnswerImgParam(question_id); text = $("#answer_img_" + question_id).val(); } $.ajax({ url: '/ajaxQuestion/submitAnswerMember', type: "POST", data: ({ question_id: question_id, type: type, text: text }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { toggleWriteAnswer(question_id, false); } else { displayMessage('Có lỗi xảy ra vui lòng gửi lại', data.error); } } } }); } function loadingAjax() { $('body').append('

'); $('#fade1').css({ 'filter': 'alpha(opacity=0.6)' }).fadeIn(); return false; } function closeLoadingAjax() { $('#fade1').fadeOut(function() { $('#fade1').remove(); }); } function voteForVip(question_id, answer_id) { var vote_type = $("input[name ^='vote_vip_type_" + question_id + "']:checked").val(); var comment = $("#vote_vip_comment_" + question_id).val(); if (vote_type) { $.ajax({ url: '/ajaxQuestion/voteForVip', type: "POST", data: ({ answer_id: answer_id, question_id: question_id, comment: comment, vote_type: vote_type }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $("input[name ='vote_vip_type_" + question_id + "']").attr('disabled', true); $("#vote_vip_comment_" + question_id).attr('disabled', true); $("#vote_vip_btn_" + question_id).attr('disabled', true); $("#vote_vip_link_" + question_id).bind('click', false); displayMessage('Thông báo', 'Bạn đã vote thành công cho câu hỏi!'); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } } function commentForQuestion(question_id) { var comment = $('#question_comment_' + question_id).val(); loadingAjax(); $.ajax({ url: '/ajaxQuestion/postComment', type: "POST", data: ({ item_id: question_id, question_id: question_id, comment: comment, item_type: 1 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#question_comment_' + question_id).val(''); reloadQuestionComment(question_id, 0); } else { displayMessage('Có lỗi xảy ra', data.error); } } closeLoadingAjax(); } }); } function likeAnswerMember(question_id, answer_id) { $.ajax({ url: '/ajaxQuestion/like', type: "POST", data: ({ item_id: answer_id, item_type: 1 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#member_ans_total_like_' + question_id + '_' + answer_id).html(data.total_like + ''); $('#member_ans_total_like_' + question_id + '_' + answer_id).show(); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function toggleMemberAnswerComment(question_id, answer_id, mode) { if (mode === 1) { display_all = true; } if ((mode === 0) && (display_all)) { mode = 1; } $.ajax({ url: '/ajaxQuestion/loadMemberAnsComment', type: "GET", data: ({ answer_id: answer_id, mode: mode }), success: function(resp) { $('#member_ans_div_' + question_id + '_' + answer_id).html(resp); $('#member_ans_div_' + question_id + '_' + answer_id).show(); } }); } function reloadTotalCommentOfMemberAns(question_id, answer_id) { $.ajax({ url: '/ajaxQuestion/countComment', type: "GET", data: ({ answer_id: answer_id }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#member_ans_total_comment_' + question_id + '_' + answer_id).html('Bình luận(' + data.total + ')'); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function commentForMemberAns(question_id, answer_id) { var comment = $('#member_ans_comment_' + question_id + '_' + answer_id).val(); $.ajax({ url: '/ajaxQuestion/postComment', type: "POST", data: ({ item_id: answer_id, question_id: question_id, comment: comment, item_type: 3 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#member_ans_comment_' + question_id + '_' + answer_id).val(''); toggleMemberAnswerComment(question_id, answer_id, 0); reloadTotalCommentOfMemberAns(question_id, answer_id); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function replyMemberAnsComment(question_id, answer_id, username) { $('#member_ans_comment_' + question_id + '_' + answer_id).val('@' + username + ':'); $('#member_ans_comment_' + question_id + '_' + answer_id).focus(); } function likeAnswerMemberComment(question_id, answer_id, comment_id) { $.ajax({ url: '/ajaxQuestion/like', type: "POST", data: ({ item_id: comment_id, item_type: 2 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#comment_total_like_' + question_id + '_' + answer_id + '_' + comment_id).html(data.total_like + ''); $('#comment_total_like_' + question_id + '_' + answer_id + '_' + comment_id).show(); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function reloadQuestionComment(question_id, display_all) { $.ajax({ url: '/ajaxQuestion/reloadQuestionComment', type: "GET", data: ({ question_id: question_id, mode: display_all }), success: function(resp) { $('#list_question_comment_' + question_id).html(resp); } }); } function likeCommentOfQuestion(question_id, comment_id) { $.ajax({ url: '/ajaxQuestion/like', type: "POST", data: ({ item_id: comment_id, item_type: 2 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#comment_of_question_' + question_id + '_' + comment_id).html(data.total_like + ''); $('#comment_of_question_' + question_id + '_' + comment_id).show(); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function likeSubCommentOfQuestion(question_id, comment_id) { $.ajax({ url: '/ajaxQuestion/like', type: "POST", data: ({ item_id: comment_id, item_type: 2 }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#sub_comment_count_like_' + question_id + '_' + comment_id).html(data.total_like + ''); $('#sub_comment_count_like_' + question_id + '_' + comment_id).show(); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function loadSubComment(question_id, comment_id, display_all) { $.ajax({ url: '/ajaxQuestion/reloadSubComment', type: "GET", data: ({ question_id: question_id, comment_id: comment_id, mode: display_all }), success: function(resp) { $('#sub_comment_form_' + question_id + '_' + comment_id).html(resp); $('#sub_comment_form_' + question_id + '_' + comment_id).show(); MathJax.Hub.Queue(["Typeset", MathJax.Hub, document.getElementById("sub_comment_form_" + question_id + '_' + comment_id)]); } }); } function addSubComment(question_id, comment_id) { function appendLeadingZeroes(n) { if (n <= 9) { return "0" + n; } return n } let current_username = ''; let current_datetime = new Date() let formatted_date = appendLeadingZeroes(current_datetime.getDate()) + "/" + appendLeadingZeroes(current_datetime.getMonth() + 1) + "/" + current_datetime.getFullYear() + " " + appendLeadingZeroes(current_datetime.getHours()) + ":" + appendLeadingZeroes(current_datetime.getMinutes()); var comment = $('#form_sub_comment_' + question_id + '_' + comment_id).val(); var html = ''; html += '

'; var root_cmt_id = comment_id; if (child_cmt_id != '') { comment_id = child_cmt_id; } else { comment_id = root_cmt_id; } $('#sub_comment_form_' + question_id + '_' + root_cmt_id + ' .box_sub.formmm').before(html); $('#form_sub_comment_' + question_id + '_' + comment_id).val(''); $.ajax({ url: '/ajaxQuestion/postComment', type: "POST", data: ({ item_id: comment_id, question_id: question_id, comment: comment, item_type: 2, root_cmt_id: root_cmt_id, }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { $('#question_comment_' + question_id).val(''); // location.reload(); loadSubComment(question_id, root_cmt_id, 0); } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); } function replySubComment(question_id, comment_id, username, sub_cmt_id = null) { $('#form_sub_comment_' + question_id + '_' + comment_id).val('@' + username + ':'); parent_cmt_id = comment_id; if (sub_cmt_id != null) { child_cmt_id = sub_cmt_id; } else { child_cmt_id = ''; } $('#form_sub_comment_' + question_id + '_' + comment_id).focus(); } function removeSavedQuestion(question_id, reload) { $.ajax({ url: '/ajaxQuestion/removeSavedQuestion', type: "POST", data: ({ question_id: question_id }), success: function(resp) { var data = jQuery.parseJSON(resp); if (data !== null) { if (data.success) { if (reload) { window.location.reload(); } } else { displayMessage('Có lỗi xảy ra', data.error); } } } }); }

'; $(noteHtml).insertAfter("#wrapper"); $("#popupNoteUser").css('display', 'flex'); TS247_NOTE_SIMPLE.saveNewNoteUser(objId,note_id); }, saveNewNoteUser:function(objId,note_id=0) { $(".saveDataNote, .updateDataNote").click(function(){ let checkAct = $(this).hasClass("updateDataNote"); let type_save = checkAct?1:0; let content = $("#boxAddNote").val(); if($.trim(content).length == 0) { alert("Bạn chưa nhập nội dung ghi chú."); return false; } $.ajax({ url: '/eAjax/addNoteToExam', type: 'POST', dataType: 'json', data: ({ note_id:note_id, type_save: parseInt(type_save), item_id: parseInt(objId), type_question: 1, content: content }), success: function(e) { if (e.success) { if(type_save){ confirm("Bạn đã sửa ghi chú thành công!"); }else{ confirm("Bạn đã thêm ghi chú thành công!"); } $("#popupNoteUser").hide(); var dataItems = e.notes; var note_id = e.note_id; $("#question_"+objId+" .item-note .item-note-item").remove(); var html_item = ""; $(dataItems).each(function(key,item){ html_item += "

"+TS247_NOTE_SIMPLE.HtmlEncode(item.content)+"EditDelete

"; }); $(html_item).insertAfter("#question_"+objId+" .item-note h3"); $("#question_"+objId+" .exam-note-simple").attr("data-noteid",note_id); return false; } else { alert(e.msg); } } }); return false; }); $(".bntCloseNoteUser").click(function(){ $("#popupNoteUser").hide(); }); }, HtmlEncode: function(s){ var el = document.createElement("div"); el.innerText = el.textContent = s; s = el.innerHTML; return s; }, EditNote:function(){ $("body").on("click",'.btnEditNote',function(){ var note_id = $(this).data("noteid"); $.ajax({ url: '/eAjax/getSimpleNote', type: 'POST', dataType: 'json', data: ({ note_id: parseInt(note_id), }), success: function(e) { if (e.success) { var dataItems = e.data[0]; TS247_NOTE_SIMPLE.showPopupNote(dataItems.item_id,dataItems.id,dataItems.content); } } }); }); }, DeleteNote:function(){ $("body").on("click",'.btnDeleteNote',function(){ var note_id = $(this).data("noteid"); var objId = $(this).closest(".nobor").attr("id").replace("question_", ""); if (!confirm('Bạn có chắc muốn xóa ghi chú này không?')) { return } $.ajax({ url: '/eAjax/removeNoteUser', type: 'POST', dataType: 'json', data: ({ note_id: parseInt(note_id), }), success: function(e) { if (e.success) { $("#question_"+objId+" .item-note .item-note-item").remove(); alert("Đã xóa ghi chú thành công."); $("#question_"+objId+" .exam-note-simple").attr("data-noteid",0); return false; } } }); }); } };