因式分解(1).am^2+am-bm^2-bm ( 2).a^3-a^2-a+1 (3).a^2-2ab+b^2+a-b (4).9x^2-z^2+y^2-6xy(5).(x+y)^2-3(x+y)+2 (6)x^2-7x+10 (7).x^2-9x+18 (8).x^2-5x-6
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![因式分解(1).am^2+am-bm^2-bm ( 2).a^3-a^2-a+1 (3).a^2-2ab+b^2+a-b (4).9x^2-z^2+y^2-6xy(5).(x+y)^2-3(x+y)+2 (6)x^2-7x+10 (7).x^2-9x+18 (8).x^2-5x-6](/uploads/image/z/9292731-51-1.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%281%29.am%5E2%2Bam-bm%5E2-bm+%28+2%29.a%5E3-a%5E2-a%2B1+%283%29.a%5E2-2ab%2Bb%5E2%2Ba-b+%284%29.9x%5E2-z%5E2%2By%5E2-6xy%285%29.%28x%2By%29%5E2-3%28x%2By%29%2B2+%286%29x%5E2-7x%2B10+%287%29.x%5E2-9x%2B18+%288%29.x%5E2-5x-6)
因式分解(1).am^2+am-bm^2-bm ( 2).a^3-a^2-a+1 (3).a^2-2ab+b^2+a-b (4).9x^2-z^2+y^2-6xy(5).(x+y)^2-3(x+y)+2 (6)x^2-7x+10 (7).x^2-9x+18 (8).x^2-5x-6
因式分解(1).am^2+am-bm^2-bm ( 2).a^3-a^2-a+1 (3).a^2-2ab+b^2+a-b (4).9x^2-z^2+y^2-6xy
(5).(x+y)^2-3(x+y)+2 (6)x^2-7x+10 (7).x^2-9x+18 (8).x^2-5x-6
因式分解(1).am^2+am-bm^2-bm ( 2).a^3-a^2-a+1 (3).a^2-2ab+b^2+a-b (4).9x^2-z^2+y^2-6xy(5).(x+y)^2-3(x+y)+2 (6)x^2-7x+10 (7).x^2-9x+18 (8).x^2-5x-6
(1).am^2+am-bm^2-bm=m(a-b)(m+1)
(2).a^3-a^2-a+1=(a+1)(a-1)²
(3).a^2-2ab+b^2+a-b=(a-b)(a-b+1)
(4).9x^2-z^2+y^2-6xy=(3x-y+z)(3x-y-z)
(5).(x+y)^2-3(x+y)+2=(x+y-1)(x+y-2)
(6)x^2-7x+10=(x-2)(x-5)
(7).x^2-9x+18=(x-3)(x-6)
(8).x^2-5x-6=(x+1)(x-6)
我觉得是 (1)(am+bm)[(am+bm)+1]
(2) (a+1)(a-1)²
(3) (a-b)[(a+b)+1]
(4) [(y-3x)+z][(y-3x)-z]
(5) [(x+y-1][(x...
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我觉得是 (1)(am+bm)[(am+bm)+1]
(2) (a+1)(a-1)²
(3) (a-b)[(a+b)+1]
(4) [(y-3x)+z][(y-3x)-z]
(5) [(x+y-1][(x+y+1]
(6) (x-2)(x-5)
(7) (x-3)(x-6)
(8) (x+1)(x-6)
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