题目内容
分解因式:
(1)(x+y)2﹣4x2;
(2)4x3﹣4x2y+xy2.
(1)(x+y)2﹣4x2;
(2)4x3﹣4x2y+xy2.
解:(1)(x+y)2﹣4x2,
=(x+y+2x)(x+y﹣2x),
=(3x+y)(y﹣x);
(2)4x3﹣4x2y+xy2,
=x(4x2﹣4xy+y2),
=x(2x﹣y)2.
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题目内容
解:(1)(x+y)2﹣4x2,
=(x+y+2x)(x+y﹣2x),
=(3x+y)(y﹣x);
(2)4x3﹣4x2y+xy2,
=x(4x2﹣4xy+y2),
=x(2x﹣y)2.