3m-2n=4 2m-3n=6
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)^2*(m-n)^3]^2/(m-n)^4
(m-n)2(n-m)3(n-m)4化简
一道数学题m+n/2+m-n/3=6 ,4(m+n)-5(m-n)=2
初一计算:(m+5n)(m-n)-6(m+2n)(n-3n)?
[2(m+n)^5-3(m+n)^4+(-m-n)^3]÷[2(m+n)^3]
(3m-4n)(4n+3m)-(2m-n)(2m+n)
(m-5n)(m-n)-6(m+2n)(m-3n)
(3m+2n)2-4(m-6n)2
2(m+n)2-(m+n)+4(m+n)-(m+n)2+3(m+n)2 化简求值