因式分解: (1)x2-(y2-2y+1); (2)a2(x-y)+b2(y-x); (3)4x3y+4x2y2+xy3; (4)(a+2)(a-8)+25.
因式分解:
(1)x2-(y2-2y+1);
(2)a2(x-y)+b2(y-x);
(3)4x3y+4x2y2+xy3;
(4)(a+2)(a-8)+25.
(1)x2-(y2-2y+1);
(2)a2(x-y)+b2(y-x);
(3)4x3y+4x2y2+xy3;
(4)(a+2)(a-8)+25.
数学人气:506 ℃时间:2019-10-24 02:29:41
优质解答
(1)x2-(y2-2y+1),=x2-(y-1)2,=(x+y-1)(x-y+1);(2)a2(x-y)+b2(y-x),=a2(x-y)-b2(x-y),=(x-y)(a2-b2),=(x-y)(a+b)(a-b);(3)4x3y+4x2y2+xy3,=xy(4x2+4xy+y2),=xy(2x+y)2...
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