x(m-x)(m-y)-m(x-m)9y-m)
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x(m-x)(m-y)-m(x-m)9y-m)x(m-x)(m-y)-m(x-m)9y-m)x(m-x)(m-y)-m(x-m)9y-m)x(m-x)(m-y)-m(x-m)(y-m)=x(m-x)(
x(m-x)(m-y)-m(x-m)9y-m)
x(m-x)(m-y)-m(x-m)9y-m)
x(m-x)(m-y)-m(x-m)9y-m)
x(m-x)(m-y)-m(x-m)(y-m)
=x(m-x)(m-y)-m(m-x)(m-y)
=(m-x)(m-y)(x-m)
=-(m-x)^2(m-y)
x(m-x)(m-y)-m(x-m)9y-m)
已知x>y,m
因式分解:x(m-x)(m-y)-m(m-x)(m-y)结果是“-(m-x)²(m-y)”还是“-(x-m)²(m-y)” 为什么?
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