4x(x-y)²-12(y-x)³
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4x(x-y)²-12(y-x)³
4x(x-y)²-12(y-x)³
4x(x-y)²-12(y-x)³
4x(x-y)²-12(y-x)³
=4x(x-y)²+12(x-y)³
=(x-y)²(4x+12x-12y)
=(x-y)²(16x-12y)
=4(x-y)²(4x-3y)
4x(x-y)²-12(y-x)³
=4x(x-y)²+12(x-y)³
=4(x-y)²【x+3(x-y)]
=4(x-y)²(4X-3Y)
4x(x-y)²-12(y-x)³
=4x(x-y)²+12(x-y)³
=4(x-y)²[x+3(x-y)]
=4(x-y)²(4x-3y)
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