Question

factorise 5 (a²- b²)² - 8ab(a²- b²) - 13a²b²​

Answer 1

Answer:

$5( {a}^{2} - {b }^{2} {)}^{2} - 8ab( {a}^{2} - {b}^{2} ) - 13 {a}^{2} {b}^{2} =$

$- ( - {5a}^{2} - {5b}^{4} + {8a}^{3} b - {8ab}^{3} + {23a}^{2} {b}^{2} )$