3x(x-y)³-6y(y-x)²
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3x(x-y)³-6y(y-x)²3x(x-y)³-6y(y-x)²3x(x-y)³-6y(y-x)²3x(x-y)³-6y(y-
3x(x-y)³-6y(y-x)²
3x(x-y)³-6y(y-x)²
3x(x-y)³-6y(y-x)²
3x(x-y)³-6y(y-x)²
=3x(x-y)³-6y(x-y)²
=3(x-y)²[x(x-y)-2y]
=3(x-y)²(x²-xy-2y)
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