作业帮计算 [（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 12:15:47
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计算 [（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
计算 [（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
计算 [（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
[（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
=(a-b)²(a+b)²/(a-b)²-2ab
=(a+b)²-2ab
=a²+b²
[（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
= [（a-b）（a+b）]²÷（a-b)² - 2ab
= （a+b）² - 2ab
= a²+b²
[（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
=(a-b)²(a+b)²÷(a-b)²-2ab
=(a+b)²-2ab
=a²+2ab+b²-2ab
=a平方+b平方
[（a-b）（a+b）]²÷（a²-2ab+b²）-2ab
=[（a-b）（a+b）]²÷（a－b﹚²-2ab
=﹙a＋b﹚²－2ab
=a²＋b²