因式分解 (1)4x(a-b)-8y(b-a) (2)-3x^3+6x^y-3xy^2
人气:481 ℃ 时间:2020-05-08 04:01:03
解答
(1)4x(a-b)-8y(b-a)
= 4x(a-b)+8y(a-b)
=4(a-b)(x+2y)
(2)-3x^3+6x^y-3xy^2
=-3x(x²-2xy+y²)
=-3x(x-y)²
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