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(A+B)的平方,去掉括号怎样解

2025-02-22 00:13:41

推荐回答（5个）

回答1：

A的平方+B的平方+A乘以B

回答2：

(A+B) 的平方等于A的平方加B的平方2倍AB

回答3：

(A+B)的平方=A平方+2ab+B平方

回答4：

(A+B)的平方=A的平方+2AB+B的平方
此为完全平方公式

回答5：

（A+B）^2=A^2+2AB+B^2

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