Question

a⁴- b⁴ - factorize.​

Answer 1

Step-by-steplexplanation:

$a^{4} - b^{4}\\= (a^{2})^{2} - (b^{2})^{2}\\= (a^{2} + b^{2})(a^{2} - b^{2})\\= (a^{2} + b^{2})[(a+b)(a-b)]\\= (a^{2} + b^{2})(a+b)(a-b)$          (ans.)