Prove that x³+y³=(x+y)(x²-xy+y²)
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Step-by-step explanation:
x3+y3=(x+y)(x2−xy+y2)
Right hand side
(x+y)(x2−xy+y2)=x(x2−xy+y2)+y(x2−xy+y2)
=x3−x2y+xy2+x2y−x2y+y3
=x3+y3
=Left hand side
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