(1)6a^3-9a^2b^2c (2)-2m^3+8m^2-12m (3)2分之1a^2b^3-2a^2b+3ab^2

taran30052022-10-04 11:39:541条回答

(1)6a^3-9a^2b^2c (2)-2m^3+8m^2-12m (3)2分之1a^2b^3-2a^2b+3ab^2 (4)3a(x+y)-2b(x+y)
(5)3x^2(x-y)+6x(y-x) (6)5a(a-b)^3-15a^2(b-a)用提公因式法

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ahbatima 共回答了21个问题 | 采纳率90.5%
1,原式=3a^2(2a-3b^2C)
2.原式=-2m(m^2-4m+3)
=-2m(m-3)(m-1)
3.原式=1/2ab(ab^2-4a+6b)
4.原式=(x+y)(3a-2b)
5.原式=3x(x-y)(x-2)
6.原式=5a(a-b)[(a-b)^2+3a]
=5a(a-b)(a^2-2ab+b^2+3a)
1年前

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(-9a^2b^2c)^2÷(3ab^2)
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