Verify: x³ + y³ = ( x+y)( x²-xy+y²)
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Answer:
(4-9)] = (-5)26+ (33-28-+19 +3²)
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Answer:
RHS
(x−y)(x² +xy+y²)
=x³+x²y+xy²−yx²−xy² −y³
=(x³−y³ )+(x²y+xy²+x²y−xy²)
=x³-y³
=LHS
Hence proved.
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