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a减b括号平方怎样去括号

更新时间: 2020-07-09 00:00:00     

1、先去平方号,将原式写成a减b括号乘以a减b括号的形式;

2、 再将a减b括号乘以a减b括号一式按多项式乘以多项式的法则进行乘法运算,即a的平方减a乘b减a乘b加b的平方,到此,原式的括号已经成功去掉;

3、最后整理多项式,结果为a的平方减2倍的a乘b加b的平方。

关键词: 括号 平方 怎样

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