[(m^2+n^2)^2]-[(-m)^2-(-n)^2]^2的值?[(3a+2b)^2]-[(3a-2b)^2]的值?[2(x+y)(x-y)]-[(x+y)^2]-[(x-y)^2]的值?
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(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
(m-2n)(-m-n)
2(m-n)²-m(m-n)
(m-n)(m+n)+(m+n)²-2m²
m-n+2n^2/(m+n)
(m-2n/n-m)-(n/m-n)=
mn(m-n)-m(n-m)²2m(m-n)(2n-m)求过程
计算m+2m/n-m + n/m-n - 2m/n-m
计算m+2n/n-m+n/m-n-2m/n-m
分式加减法:化简:2m/m-n-n/n-m+m+2n/n-m
计算2m-n/n-m+m/m-n+n/n-m
计算:2m-n/n-m+m/m-n+n/n-m
4m(m-m)-2n(n-m)
(n/m+n/2m^2)*4m/n^2
m/(m-n)^2-n/(n-m)^2
2m(m-n)平方-2n(n-m)平方
[(m-n)^2*(m-n)^3]^2/(m-n)^4
[(m-n)^2*(m-n)^3]^2/(m-n)^4