Evaluate : (a+b) (a−b) (a^2+b^2) - Vidyadip

Question

Evaluate : $(a+b) (a−b) (a^2+b^2)$

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Answer

$(a+b) (a−b) (a^2+b^2)$
$= (a^2−b^2) (a^2+b^2)$
$= (a^2)^2− (b^2)^2$
$= a^4 − b^4$

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