因式分解:-6xy²(x-y)+9x(x-y)²
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因式分解:-6xy²(x-y)+9x(x-y)²
因式分解:-6xy²(x-y)+9x(x-y)²
因式分解:-6xy²(x-y)+9x(x-y)²
-6xy²(x-y)+9x(x-y)²
=-3x(x-y)[2y²-3(x-y)]
=-3x(x-y)(2y²-3x+3y)
-6xy²(x-y)+9x(x-y)²
=-3x(x-y)[2y^2-3(x-y)]
=-3x(x-y)(2y^2-3x+3y)