因式分解 x³-9x 6xy²-9x²y-y³
因式分解①9(x+y)²-12(x+y-1/3) ②8-6x-6y+(x+y)²③xy³-
2x²y-x³-xy²因式分解
因式分解:-x³-4xy²+4x²y
16x²y-16x³-4xy 因式分解
-x²y+2xy²-y³ 因式分解
x²+xy-6y²因式分解
因式分解x²+xy-6y²
因式分解x的5次方y-x³y+2x²y-xy
因式分解:[x(x²y²-xy)-y(x²-x³y)]÷3x²y
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x
6(x-y)³+15(y-x)²-9(y-x)³因式分解
因式分解(1) 3x²+6xy(2)x³y-2x²y²+xy³