【初一下数学题,快快快快~计算1.2(x-y)^2[-2(x-y)^n]2.-6x^2y乘(a-b)^3乘1/3xy^2乘(b-a)^2快快快哦~】
<p>问题：【初一下数学题,快快快快~计算1.2(x-y)^2[-2(x-y)^n]2.-6x^2y乘(a-b)^3乘1/3xy^2乘(b-a)^2快快快哦~】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">龚云的回答：<div class="content-b">网友采纳 1.2(x-y)^2[-2(x-y)^n] =-4(x-y)^(2+n); 2.-6x^2y乘(a-b)^3乘1/3xy^2乘(b-a)^2 =-2x^(2+1)y^(1+2)(a-b)^(3+2) =-2x^3y^3(a-b)^5.
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