(function(){var loadHandler=window['sl_{2B8C522B-AE6E-4C36-8C1B-233D7005F8F2}'];loadHandler&&loadHandler(12, '<div id="spr0_aea30dd"><div id="spr1_aea30dd" class="kern slide"><img id="img13_aea30dd" src="data/img1.png" width="1280px" height="720px" alt="" style="left:0px;top:0px;"/></div><div id="spr2_aea30dd" class="kern slide"><div id="spr3_aea30dd"><img id="img0_aea30dd" src="data/img2.jpg" width="1279.5" height="720" alt="" style="left:0.188px;"/></div><div id="spr4_aea30dd" style="left:25.5px;top:26.25px;"><img id="img1_aea30dd" src="data/img3.png" width="1230" height="666.75" alt=""/></div><div id="spr5_aea30dd" style="left:445.5px;top:87px;"><img id="img2_aea30dd" src="data/img111.png" width="369.75" height="53.25" alt="Quy tắc dấu ngoặc"/></div><div id="spr6_aea30dd" style="left:94.721px;top:-9.07px;"><img id="img3_aea30dd" src="data/img7.png" width="99" height="101.25" alt="" style="left:3.872px;top:0.054px;"/></div><div id="spr7_aea30dd" style="left:843.322px;top:16.365px;"><div id="svg1_aea30dd" style="left:295.627px;top:13.8px;"><svg width="120" height="94" viewBox="-2 -31.29 120 94"><g fill="none"><path fill="#52a7a4" stroke="#52a7a4" stroke-width="1.333" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="8" transform="matrix(-1,0,0,1,86.35524,0)" d="M0.667,57.722 v-27.765 a29.29,29.29 0 0,1 29.29,-29.29 h55.732 v-0 v1.402 v1.402 v-0 h-55.732 a26.486,26.486 0 0,0 -26.486,26.486 v27.765 Z" fill-rule="evenodd"/></g></svg></div><div id="svg2_aea30dd" style="left:106.071px;top:42.704px;"><svg width="80" height="13" viewBox="-5.961 -3 80 13"><g fill="#52a7a4" stroke="none"><path stroke="#52a7a4" stroke-width="6" stroke-linecap="butt" transform="translate(-955.353455,-62.06945)" d="M955.393,65.95 L1022.444,65.069"/></g></svg></div><div id="spr8_aea30dd" style="left:354.498px;top:65.531px;"><img id="img4_aea30dd" src="data/img112.png" width="63" height="73.5" alt="" style="left:2.348px;top:0.117px;"/></div><div id="spr9_aea30dd" style="top:6.766px;"><img id="img5_aea30dd" src="data/img113.png" width="104.25" height="96" alt="" style="left:-0.093px;top:4.404px;"/></div><div id="spr10_aea30dd" style="left:187.189px;"><img id="img6_aea30dd" src="data/img113.png" width="104.25" height="96" alt="" style="left:-0.093px;top:4.404px;"/></div></div><div id="spr11_aea30dd" style="left:50.337px;top:150.764px;"><img id="img7_aea30dd" src="data/img114.png" width="1179.325" height="516.763" alt="" style="top:-0.563px;"/></div><div id="spr12_aea30dd" style="left:64.864px;top:133.47px;"><div style="width:0px;"><span id="txt0_aea30dd" class="relpos" data-width="136.901031" style="left:9.6px;top:6.788px;">Bài tập: </span><span id="txt1_aea30dd" class="relpos" data-width="138.414063" style="left:9.593px;top:6.788px;">Điền từ “</span><span id="txt2_aea30dd" class="relpos" data-width="168.510406" style="left:9.587px;top:6.788px;">giữ nguyên</span><span id="txt3_aea30dd" class="relpos" data-width="51.807289" style="left:9.58px;top:6.788px;">”, “</span><span id="txt4_aea30dd" class="relpos" data-width="110.942703" style="left:9.573px;top:6.788px;">đổi dấu</span><span id="txt5_aea30dd" class="relpos" data-width="375.320313" style="left:9.567px;top:6.788px;">” thích hợp và chỗ chấm:</span></div></div><div id="spr13_aea30dd" style="left:76.5px;top:232.5px;"><img id="img8_aea30dd" src="data/img115.png" width="1086.75" height="399" alt="Khi bỏ dấu ngoặc có dấu “+” đằng trước thì ……………… dấu các số hạng trong ngoặc\
𝑎+ 𝑏+𝑐 =\
𝑎+ 𝑏−𝑐 =\
\
Khi bỏ dấu ngoặc có dấu “−” đằng trước thì ……………… dấu các số hạng trong ngoặc. Dấu “+” thành dấu “−” và dấu “−” thành dấu “+”\
𝑎− 𝑏+𝑐 =\
𝑎− 𝑏−𝑐 ="/></div><div id="spr14_aea30dd" style="left:789.894px;top:219.25px;"><div style="width:0px;"><span id="txt6_aea30dd" data-width="168.510406" style="left:9.6px;top:6.788px;">giữ nguyên</span></div></div><div id="spr15_aea30dd" style="left:832.385px;top:443.303px;"><div style="width:0px;"><span id="txt7_aea30dd" data-width="110.942703" style="left:9.6px;top:6.788px;">đổi dấu</span></div></div><div id="spr16_aea30dd" style="left:748.5px;top:330px;"><img id="img9_aea30dd" src="data/img116.png" width="147" height="27" alt="𝑎+𝑏+𝑐"/></div><div id="spr17_aea30dd" style="left:747.75px;top:375.75px;"><img id="img10_aea30dd" src="data/img117.png" width="146.25" height="27" alt="𝑎+𝑏−𝑐"/></div><div id="spr18_aea30dd" style="left:747.75px;top:551.25px;"><img id="img11_aea30dd" src="data/img118.png" width="147" height="26.25" alt="𝑎−𝑏−𝑐"/></div><div id="spr19_aea30dd" style="left:746.25px;top:599.25px;"><img id="img12_aea30dd" src="data/img119.png" width="147" height="27" alt="𝑎−𝑏+𝑐"/></div></div></div>');})();