计算:(1)(x+y)2(x-y)2-(x-y)(x+y)(x2+y2);(2)(2x-3)(x-2)-2(x-1)2;(3)[(x-y)2+(x+y)2](x2-2y2);(4)(a+1)(a+2)

题目简介

计算:(1)(x+y)2(x-y)2-(x-y)(x+y)(x2+y2);(2)(2x-3)(x-2)-2(x-1)2;(3)[(x-y)2+(x+y)2](x2-2y2);(4)(a+1)(a+2)

题目详情

计算:
(1)(x+y)2(x-y)2-(x-y)(x+y)(x2+y2);
(2)(2x-3)(x-2)-2(x-1)2
(3)[(x-y)2+(x+y)2](x2-2y2);
(4)(a+1)(a+2)(a+3)(a+4);
题型:计算题难度:中档来源:同步题

答案

解:(1)
(2)
(3)
(4)

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