2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
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![2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解](/uploads/image/z/3157077-21-7.jpg?t=2a%28b-c%29%26%23178%3B-3b%2B3c%2Cx%28a-x%29%28a-y%29-y%28x-a%29%28y-a%29%E7%9A%84%E5%90%84%E5%BC%8F%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3)
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2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
2a(b-c)²-3b+3c
=2a(b-c)²-3(b-c)
=(b-c)[2a(b-c)-3]
=(b-c)(2ab-2ac-3)
x(a-x)(a-y)-y(x-a)(y-a)
=x(a-x)(a-y)-y(a-x)(a-y)
=(x-y)(a-x)(a-y)