Question

Factorise x power 4 minus y power 4

Answer 1

(x ka square -y ka square ) (x ka square - y ka square )

Answer 2

Hey

HERE IS THE ANSWER
${x}^{4} - {y}^{4}$
$({x {}^{2}) }^{2} - ({y {}^{2} )}^{2}$
$= ( {x}^{2} + {y}^{2} )( {x}^{2} - {y}^{2} ) \\ = ( {x}^{2} + {y}^{2} )(x + y)(x - y)$
Hope it helps to you.