Question

factorise
x^4 - y^4​

Answer 1

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

Answer 2

Answer:

a2 minus b2 ki prep kakajaka