分解因式(1)a2(x-y)+16(y-x);(2)(x2+y2)2-4x2y2.-数学

题目简介

分解因式(1)a2(x-y)+16(y-x);(2)(x2+y2)2-4x2y2.-数学

题目详情

分解因式
(1)a2(x-y)+16(y-x);
(2)(x2+y22-4x2y2
题型:解答题难度:中档来源:不详

答案

(1)a2(x-y)+16(y-x),
=(x-y)(a2-16),
=(x-y)(a+4)(a-4);

(2)(x2+y2)2-4x2y2,
=(x2+2xy+y2)(x2-2xy+y2),
=(x+y)2(x-y)2.

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