Factories:
i. 16a2 – 24ab
ii. 15ab2 – 20a2b
iii. 12x2y3 – 21x3y2
(i) Let’s take HCF of 16a2 – 24ab
Taking 8a as common from the whole, we get,
16a2 – 24ab = 8a(2a – 3b).
(ii) 15ab2 – 20a2b,
Taking 5ab as common from the whole, we get,
15ab2 – 20a2b = 5ab(3b – 4a)
(iii) 12x2y3 – 21x3y2,
Taking 3x2y2 as common from the whole, we get,
12x2y3 – 21x3y2 = 3x2y2(4y – 7x)