Ex 12.1, 2 (iii) - Chapter 12 Class 8 Factorisation
Last updated at July 18, 2026 by Teachoo
Factorisation using common factors
Factorization by common factors
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Transcript
Ex 12.1, 2 (Method 1) Factorise the following expressions. (iii) 7š^2 + 14a7š^2 + 14a = 7š^2 + (7 Ć 2) a = (7a Ć a) + (7a Ć 2) Taking 7a common, = 7a (a + 2) Ex 12.1, 2 (Method 2) Factorise the following expressions. (iii) 7š^2 + 14a7š^2 + 14a 7š^š = 7 Ć š^2 = 7 Ć a Ć a 14a = 14 Ć a = 7 Ć 2 Ć a So, 7 and a are the common factors. 7š^2 + 14a = (7 Ć a Ć a) + (2 Ć 7 Ć a) = (7 Ć a) (a + 2) = 7a (a + 2)
