Factories: x³-9y³-3xy(x-y)
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Answer:
x³-9y³-3x²y+3xy²
x³-3x²y-3xy²-9y³
x²(x-3y) -3y²(x-3y)
(x²-3y²)(x-3y).
Glad I could help you.
Thanks.
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