1.

Simplify :— (a²- b²)²​

Answer»

ANSWER:

{a}^{4} - 2 {a}^{2} {b}^{2} + {b}^{4}

EXPLANATION :-

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

Step-by-step explanation:

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