Question

please answer me friends it urgent with step by step explanation ​

Answer 1

Answer:

$( {x}^{2} - {y}^{2} ) = ( {x {}^{2} )}^{2} - 2( {x)}^{2} ( {y)}^{2} + ( {y}^{2} ) {}^{2}$

$( {x}^{2} - {y}^{2} ) {}^{2} = {x}^{4} - 2 {x}^{2} {y}^{2} + {y}^{4}$

Answer 2

Step-by-step explanation:

You have to use the formula of (a-b)²