Question

Factorise - 36 a² - b²​

Answer 1

$question = \: - 36 {a}^{2} - {b}^{2} \\ formula = ({a}^{2} - {b}^{2} ) = (a + b)(a - b) \\ solution. \\ = - (6a)^{2} - (b) ^{2} \\ = ( - 6a + b)(6a - b) - 12ab \: \: answer...$