[整式] 2022年初中数学:整式探索规律 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 探索规律是一个通过观察、分析、比较、综合、猜想等一系列的思维活动,运用已知的...
[整式] 2022年初中数学:整式运算的误区提醒 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 误区提醒 在去括号时,如果括号前面是-,容易出现的错误是忘记变号(也或者括号内的...
[整式] 2022年初中数学:整式的化简 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 整式的化简 平方差公式: (a+b)(a-b)=a2-b2 完全平方公式: (a+b)2=a2+2ab+b2 (a-b)2=a2-2ab+b2 立方...
[整式] 2022年初中数学:代数式 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 代数式 1. 概念:用基本的运算符号(加、减、乘、除、乘方、开方)把数与字母连接而成...
[整式] 2022年初中数学:合并同类项 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 合并同类项: 同类项的系数相加,所得的结果作为系数。字母和字母的指数不变。同类...
[整式] 2022年初中数学:整式运算的误区提醒 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 误区提醒 在去括号时,如果括号前面是-,容易出现的错误是忘记变号(也或者括号内的...
[整式] 2022年初中数学:去括号法则 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})(); 去括号法则: 括号前是+号,把括号和它前面的+号去掉。括号里各项都不变符号,括号...
[整式] 2022年初中数学:积的乘方运算法则 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[整式] 2022年初中数学:幂的乘方运算法则 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...
[因式分解] 2022年初中数学:因式分解的意义答案 2022-06-01
'); (window.slotbydup=window.slotbydup || []).push({ id: '8096091', container: s, size: '580,90', display: 'inlay-fix' });})();...