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因式分解:(1)3a2b-6ab2+3ab;(2)12x4-8;(3)5xy4+5x3y2-10x2y3.

题目详情
因式分解:
(1)3a2b-6ab2+3ab;
(2)
1
2
x4-8;
(3)5xy4+5x3y2-10x2y3

22
1
2
x4-8;
(3)5xy4+5x3y2-10x2y3
1
2
11224
43223
▼优质解答
答案和解析
(1)3a22b-6ab22+3ab=3ab(a-2b+1);

(2)
1
2
x4-8,
=
1
2
(x4-16),
=
1
2
(x2+4)(x2-4),
=
1
2
(x2+4)(x+2)(x-2);

(3)5xy4+5x3y2-10x2y3
=5xy2(y2+x2-2xy),
=5xy2(x-y)2
1
2
111222x44-8,
=
1
2
(x4-16),
=
1
2
(x2+4)(x2-4),
=
1
2
(x2+4)(x+2)(x-2);

(3)5xy4+5x3y2-10x2y3
=5xy2(y2+x2-2xy),
=5xy2(x-y)2
1
2
111222(x44-16),
=
1
2
(x2+4)(x2-4),
=
1
2
(x2+4)(x+2)(x-2);

(3)5xy4+5x3y2-10x2y3
=5xy2(y2+x2-2xy),
=5xy2(x-y)2
1
2
111222(x22+4)(x22-4),
=
1
2
(x2+4)(x+2)(x-2);

(3)5xy4+5x3y2-10x2y3
=5xy2(y2+x2-2xy),
=5xy2(x-y)2
1
2
111222(x22+4)(x+2)(x-2);

(3)5xy44+5x33y22-10x22y33,
=5xy22(y22+x22-2xy),
=5xy22(x-y)22.