x^2n+6x^n-y^2m+9 因式分解
因式分解:(m-n)²+2(n-m)=_______ 因式分解:x²-y²+6y-9=__
因式分解:(x-y)^2(m-n)+(x+y)^2(n-m)
把下列各式因式分解(2m+3n)(2m-n)-4n(2m-n)(x+y)^2(x-y)+(x+y)(y-x)^24a(x
因式分解:3a(x-y)+9(y-x)(2m-3n)²-2m+3n
因式分解4x^(n+2)-9x^n+6x^(n-1)-x^(n-2)
因式分解m²+2m(m-n)+(m-n)²,16-8(x-y)+(x-y)²
一道数学题因式分解:-2XY-X^2-Y^2 16(m-n)^2-9(m+n)^2
因式分解:1.(m-n)²-2m+2n 2.x²-y²-(x+y)²
1.(因式分解)m*m/9-mn/3+n*n/4.2.已知x*x+y*y-2x+1=0,求xy=________.
5m(x-y)的2次方+10n(y-x)的3次方 因式分解
(x+y)(m+n)2-(x+y)(m+n)2
因式分解(m²+n²)²-4m²n² x ²+2x+1-y&