Question
गुणनखंड कीजिए : $a^4-b^4$

Answer

\begin{aligned}
a^4-b^4 & =\left(a^2\right)^2-\left(b^2\right)^2 \\
& =\left(a^2-b^2\right)\left(a^2+b^2\right) \\
& =(a-b)(a+b)\left(a^2+b^2\right)
\end{aligned}
$

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