1-3x+6x^2-3x^32.a^2(a-3)-a+3

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1-3x+6x^2-3x^32.a^2(a-3)-a+3
1-3x+6x^2-3x^3
2.a^2(a-3)-a+3

1-3x+6x^2-3x^32.a^2(a-3)-a+3
既然要详细解答,那我就一步一步写给你看吧：
原式=-(3x-6x^2+3x^3)
=-x(3x^2-6x+3)
=-3x(x^2-2x+1)
=-3x(x-1)^2
原式=a^2(a-3)-(a-3)
=(a-3)(a^2-1)
=(a-3)(a+1)(a-1)
记得哈,因式分解的时候要先提公因式,再根据完全平方公式或平方差公式进行分解,甚至可以用十字交叉法来分解.呐,这种题多练练就好了!

1-3x+6x^2-3x^3
=-3x(x^2-2x+1)
=-3x(x-1)^2
2.a^2(a-3)-a+3
=a^2(a-3)-(a-3)
=(a-3)(a^2-1)
=(a-3)(a+1)(a-1)

我来做做，百度上传公式不灵只能图片了

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