分解因式:6xy²-9x²y-y³
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分解因式:6xy²-9x²y-y³
y(6xy-9x^2-y^2)
y*(-((3x)^2-2*3xy+y^2))
=-y(3x-y)(3x-y)
6xy^2-9x^2y-y^3=y(6xy-9x^2-y^2)=-y(3x-y)^2
y(3x-y)(3x-y)
分解因式:6xy²-9x²y-y³
y(6xy-9x^2-y^2)
y*(-((3x)^2-2*3xy+y^2))
=-y(3x-y)(3x-y)
6xy^2-9x^2y-y^3=y(6xy-9x^2-y^2)=-y(3x-y)^2
y(3x-y)(3x-y)