(3m+2n)^2-(2m+3n)^2
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(3m+2n)^2-(2m+3n)^2
(3m+2n)^2-(2m+3n)^2
=[(3m+2n)+(2m+3n)]×[(3m+2n)-(2m+3n)]
=(5m+5n)×(m-n)
=5×(m+n)(m-n)
=5m^2-5n^2
=[(3m+2n)+(2m+3n)]×[(3m+2n)-(2m+3n)]
=(5m+5n)×(m-n)
=5×(m+n)(m-n)
=5m^2-5n^2
[(m-n)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
计算(m+n)^3-(n+m)(m-n)^2
(n-m)^3×(m-n)^2-(m-n)^5
因式分解(n-m)^3(m-n)^2-(m-n)^5
3m(m-n)-2n(m-n)的平方
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
已知m/n=5、,求(m/(m+n))+(m/(m-n))-(n^2/(m^3-n^2))
(2m+3n)(2m-3n)-(3m-2n)(3m+2n)
(2m+3n)(3m-2n)-(3m-2n)(3m+2n)
(3m-2n)^+(3m+2n) (3m-2n)-9(m+n)^
2n(m+n)^2+2m(m+n)^2+(m+n)^3 分解因式: