6xy²-9x²y-y³
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6xy²-9x²y-y³6xy²-9x²y-y³6xy²-9x²y-y³6xy^2-9x^2y-y^3=-y(
6xy²-9x²y-y³
6xy²-9x²y-y³
6xy²-9x²y-y³
6 x y^2 - 9 x^2 y - y^3
= - y( 9x^2 - 6xy + y^2)
= -y (3x-y)^2
-9x²-y²+6xy
6xy²-9x²y-y²因式分解
x²-y²+6x+9分之x²+y²-9-2xy
6xy²-9x²y-y³
6xy²-9x²y-y³因式分解
6x²y-9xy-xy²+3x²y
x²-2xy+y²-9
因式分解-x²+6xy-9y²
1-x²-9y²+6xy因式分解
6xy²-9x²-y³
x²-9x²y²+6xy-1a²b²+16ab+60
约分(初二数学的分式)x²+y²-9-2xy/x²-y²+6x+9
x²+9y²+4z²-6xy+4xz-12yz怎么分解?
x²-6xy+9y²+4z²-12yz+4xz分解多项式
x²+xy-2y²-x+7y-6
6x²-xy-15y²=0 求x²-2xy+4y²/2x²-3xy-3y²告诉下
6x²-xy-15y²=0 求2x²-3xy-3y²分之x²-2xy+4y²
计算或化简:[(x-y)/(x+3y)]÷[(x²-y²)/(x²+6xy+9y²)]-(2y)/x+y