【36x^2y^2-(x^2+9y^2-1)^2】
<p>问题：【36x^2y^2-(x^2+9y^2-1)^2】<p>答案：↓↓↓<p class="nav-title mt10" style="border-top:1px solid #ccc;padding-top: 10px;">匡秀娟的回答：<div class="content-b">网友采纳 =(6xy-x^2-9y^2+1)(6xy+x^2+9y^2-1) =[[(x+3y)^2-1] =(1-x+3y)(1+x-3y)(x+3y+1)(x+3y-1)
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