﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/19 19:33:34
﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚
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﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚
﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚

﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚
﹙a³+2a²b+ab²﹚÷﹙a²b—b³﹚
=a(a²+2ab+b²)÷b(a²-b²)
=a(a+b)²÷b(a+b)(a-b)
=a(a+b)÷b(a-b)
=a(a+b)/[b(a-b)]

=a(a+b)²÷b(a+b)(a-b)
=a(a+b)/b(a-b)
=(a²+ab)/(ab-b²)