Question

Factorise 4a²-9b²-2a-3b

Answer 1

Kindly refer to attachment for solution ^_^

Hope it helps ^_^

Answer 2

4a² - 9b² - 2a - 3b  

={(2a)²−(3b)²}−(2a+3b)  

={(2a+3b)(2a−3b)}−(2a+3b)  

=(2a+3b)(2a−3b−1)