4.-mn-m²=-m﹙______﹚.5.因式分解:﹙x+y﹚²-3﹙x+y﹚=_____.9.如
4.-mn-m²=-m﹙______﹚.5.因式分解:﹙x+y﹚²-3﹙x+y﹚=_____.9.如
3m(x-y)-2(y-x)²因式分解
因式分解:(1)x³y²-x (2)m²-2mn+n²-1
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=________.
已知:单项式mn满足2x(M+3x)=6x²y²+N,求MN
因式分解:mn(x²+y²)+xy(m²+n²)
已知单项式M,N满足3x(M-5x)=6x²y²+N,求MN.
因式分解:(m-n)²+2(n-m)=_______ 因式分解:x²-y²+6y-9=__
49﹙x-y﹚²-25﹙x+y﹚²怎么因式分解?
因式分解:﹙x+y﹚²+﹙x+y﹚-20=
1、3m(2x-y)²-3mn²
因式分解 3m(2x-y)²