Question

18ab(16a^2-9b^2) by9ab(4a+3b)

Answer 1

18ab { (4a)^2 - (3b)^2 } / 9ab (4a + 3b)

= 2 { (4a + 3b)(4a - 3b) } / (4a + 3b)

= 2 (4a - 3b).....


Hope it helps....