9m^2-6m+2n-n^2
1个回答
9m^2-6m+2n-n^2
=(3m-1)²-1+2n-n²
=(3m-1)²-(n-1)²
=(3m-1+n-1)(3m-1-n+1)
=(3m+n-2)(3m-n)
相关问题
(m+n)2+6(m2-n2)+9(m-n)2.
(m+n)2+6(m2-n2)+9(m-n)2.
(m+2n)-6(m+2n)(2m-n)+9(n-2m) 因式分解
(m+2n)^2-6(m+2n)(2m-n)+9(n-2m)^2 因式分解
-(m+n)^2+6(m+n)-9
(m^2-6mn+9n^2)/(3n-m)-(4m^2-9n^2)/(2m-3n) m=-2 n=2008.化简求值
分解因式m^2+2m-6n-9n^2=
9m²-6m+2n-n²(因式分解,
(m+n)^2-6m-6n+9 分解因式
若(m-2n)/(2m+n)=3,则[3(m-2n)/(2m+n)-(m-2n)/[2(2m+n)] - {9(m-2n