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)


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