Question

factorise the following
a⁴- b⁴ ​

Answer 1

Question

Factorise:- a⁴- b⁴

Solution

$= a⁴- b⁴ \\ = { ({a}^{2} )}^{2} - {( {b}^{2}) }^{2} \\ = ( {a}^{2} + {b}^{2} )( {a}^{2} - {b}^{2} )$

Hence, shown.

Formula used:-

(a²-b²) = (a+b)(a-b)