题目内容
(1)因式分解:(a2+1)2-4a2
(2)化简:[(x(x3y2)2-2(x2y)3]-(-xy2)3.
(2)化简:[(x(x3y2)2-2(x2y)3]-(-xy2)3.
(1)原式=(a2+1-2a)(a2+1+2a)
=(a-1)2(a+1)2;
(2)原式=x•x6y4-2x6y3+x3y6
=x7y4-2x6y3+x3y6
=(a-1)2(a+1)2;
(2)原式=x•x6y4-2x6y3+x3y6
=x7y4-2x6y3+x3y6
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