Factorise
x(x+y)3-3xy(x+y)
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Answer:
(3x²+3xy)(1-y)
Step-by-step explanation:
x(x+y)3-3xy(x+y)
3x²+3xy-3x²y-3xy²
regrouping
3x²-3x²y+3xy-3xy²
3x²(1-y)+3xy(1-y)
(3x²+3xy)(1-y)
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