(2m+n)(2m-n)-3(2m-n)的2次方+(-3n-4m)(4m-3n),求化简.
[(m-n)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
(2m+n)(2m-n)-3(2m-n)的2次方+(-3n-4m)(4m-3n),求化简.
2(m+n)的2次方-(m+n)+4(m+n)-(m+n)的2次方+3(m+n)的2次方
3m(m-n)-2n(m-n)的平方
(3m-4n)(4n+3m)-(2m-n)(2m+n)
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
计算(m+4n)(m-n)-6(m+2n)(m-3n)
(m+4n)(m-n)-6(m+2n)(m-3n),
(m+4n)(m-n)-6(m+2n)(m-3n)
((m-n)的2次方(m-n)的3次方)的2次方除(n-m)的4次方
2(m+n)2-(m+n)+4(m+n)-(m+n)2+3(m+n)2 化简求值