Question

${a4 - b4}^{?}$





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Answer 1

Step-by-step explanation:

$\: \: \: \: \: \: {a}^{4} - {b}^{4} \\ = {( {a}^{2} )}^{2} - {( {b}^{2}) }^{2} \\ = ( {a}^{2} + {b}^{2} )( {a}^{2} - {b}^{2} )$