Question

factor :-
$p {}^{4} - 8$
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Answer 1

$p {}^{4} - 8$

$(p {}^{2} ) {}^{2} - (2 \sqrt{2} ) {}^{2}$

$now \: apply \: a {}^{2} - b {}^{2} = (a + b)(a - b)$

$(p {}^{2} + 2 \sqrt{2} )(p {}^{2} - 2 \sqrt{2} )$

Thanks