Varify? (1) x cube + y cube
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Answer:
(x+y)(x²+y²−xy)
Step-by-step explanation:
=>(x+y)³=x³+y³+3xy(x+y)
=>x³+y³=(x+y)³-3xy(x+y)
=(x+y)(x²+y²+2xy−3xy)
=(x+y)(x²+y²−xy)
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