题目内容
【题目】因式分解:
(1)3a(x-y)-5b(y-x);
(2)x6-x2y4.
【答案】(1) (x-y)(3a+5b);(2) x2(x-y)(x+y)(x2+y2).
【解析】
根据因式分解法即可求出答案.
(1)原式=(x-y)(3a+5b).
(2)原式=x2(x4-y4)
=x2(x2-y2)(x2+y2)
=x2(x-y)(x+y)(x2+y2).
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题目内容
【题目】因式分解:
(1)3a(x-y)-5b(y-x);
(2)x6-x2y4.
【答案】(1) (x-y)(3a+5b);(2) x2(x-y)(x+y)(x2+y2).
【解析】
根据因式分解法即可求出答案.
(1)原式=(x-y)(3a+5b).
(2)原式=x2(x4-y4)
=x2(x2-y2)(x2+y2)
=x2(x-y)(x+y)(x2+y2).