(m+n)(x-y)-(m+n)(x+y)的结果

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(m+n)(x-y)-(m+n)(x+y)的结果
(m+n)(x-y)-(m+n)(x+y)的结果

(m+n)(x-y)-(m+n)(x+y)的结果
-2my-2ny

-2my-2ny

(m+n)(x-y)-(m+n)(x+y)
=(m+n)[(x-y)-(x+y)]
=(m+n)(x-y-x-y)
=-2y(m+n)

=-2y（x+y）

=-2y(m+n)

x(m+n)-y(n+m)+(m+n)等于多少因式分解（m+n)(x-y)- （m+n)(x+y) (m-n)(x-y)-(n-m)(x+y)因式分解 (m+n)(x-y)+(m-n)(y-x) (m+n)(x-y)-(m+n)(x+y)的答案 (m+n)(x-y)-(m+n)(x+y)的结果 (x+y)(m+n)2-(x+y)(m+n)2 计算(x-y-m+n)(x-y+m-n) m(x-y)-n(y-x)因式分解 m(x-y)+n(y-x) x^n*y*(-x^2y^m) m(x-y)^n+n(y-x)^2n因式分解 m(x+y)+n(x+y)-x-y因式分解 m,n为有理数,证明方程(m+n)x+m-(m-n)y+n=0 x(m+n)+y(m+n)等于多少 x（m-n）²-y（n-m）² -x^6n-y^3m因式分解分解因式：(x+y)(x-y)-(x+y)² 3m(m-n)+6n(n-m) x(x-y)-y(y-x) (x-3)²+（3x-9)(x+y)(x-y)-(x+y)² 3m(m-n)+6n(n-m) x(x-y)-y(y-x) (x-3)²+（3x-9)