Question

solve 11 question plz

factorise

Answer 1

$16 {a}^{2} - \frac{25}{9 {a}^{2} } \\ \\ {(4a)}^{2} - ( { \frac{5}{3a} )}^{2} \\ \\ (4a + \frac{5}{3a} )(4a - \frac{5}{3 a} )$