Question

factorise : 8(2a + 3b)3 - 12(2a + 3b)2

Answer 1

8(2a + 3b)3 - 12(2a + 3b)2

= 4 (2a + 3b)2 [2 (2a + 3b) - 3]

= 4 (2a + 3b)2 [4a + 6b - 3]