Formula for x3 - y3
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x³ - y³ = (x - y)(x² + xy + y²)
⚘Derivation of the formula:-
x³ - y³ = (x - y)(x² + xy + y²)
Taking the RHS,
=(x - y)(x² + xy + y²)
= x (x² + xy + y²) - y (x² + xy + y²)
= x³ + x²y + xy² - x²y - xy² - y³
= x³ - y³
= LHS
Hence, verified.
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Answer:(x+y)(x
Step-by-step explanation:
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