4(m+n)^2-9(m-n)^2
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4(m+n)^2-9(m-n)^24(m+n)^2-9(m-n)^24(m+n)^2-9(m-n)^2原式=[2(m+n)]^2-[3(m-n)]^2=(2m+2n+3m-3n)(2m+2n-3m+2
4(m+n)^2-9(m-n)^2
4(m+n)^2-9(m-n)^2
4(m+n)^2-9(m-n)^2
原式= [2(m+n)]^2-[3(m-n)]^2
=(2m+2n+3m-3n)(2m+2n-3m+2n)
=(5m-n)(4n-m)
原式=(2m+2n+3m-3n)(2m+2n-3m+3n)
=(5m-n)(5n-m)
望采纳
(4m 4n-1)(m n-2)
4m^2(m+n)-9n^2(m+n)
[(m+n)(m-n)-(m-n)²+2n(m-n)]÷4n
(n/m+n/2m^2)*4m/n^2
(m-n)^9乘(n-m)^8/(m-n)^2
[(m-n)^2*(m-n)^3]^2/(m-n)^4
[(m-n)^2*(m-n)^3]^2/(m-n)^4
因式分解4m^2(m-n)+4n(n-m)
4m(m-n)^2+4n(n-m)^3
(m-n)2(n-m)3(n-m)4化简
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
化简,1.[(m+n-p)(m+p+n)-(m+n)²]/(-p),2.[(m+n)(m-n)-(m-n)²+2n(m-n)]/4n
(m-n)^2*(m-n)^4=?
(m-2n)(-m-n)
4m(m-m)-2n(n-m)
已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2=
m-n+2n^2/(m+n)
4(m+n)^2-9(m-n)^2
计算;4(m+n)^2-9(m-n)^2