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Ex 12.1, 2 (i) - Chapter 12 Class 8 Factorisation
Last updated at May 18, 2023 by Teachoo
Factorisation using common factors
Factorization by common factors
Ex 12.1, 1 (i)
Ex 12.1, 1 (ii)
Ex 12.1, 1 (iii) Important
Ex 12.1, 1 (iv) Important
Ex 12.1, 1 (v)
Ex 12.1, 1 (vi) Important
Ex 12.1, 1 (vii)
Ex 12.1, 1 (viii) Important
Example 2 Important
Example 1
Ex 12.1, 2 (i) You are here
Ex 12.1, 2 (ii) Important
Ex 12.1, 2 (iii)
Ex 12.1, 2 (iv) Important
Ex 12.1, 2 (v)
Ex 12.1, 2 (vi)
Ex 12.1, 2 (vii)
Ex 12.1, 2 (viii) Important
Ex 12.1, 2 (ix)
Ex 12.1, 2 (x) Important
Transcript
Ex 12.1, 2 (Method 1) Factorise the following expressions. (i) 7x – 42 7x = 7 × x 42 = 2 × 3 × 7 7 is the only common factor. 7x − 42 = (7 × x) − (2 × 3 × 7) = 7 (x − (2 × 3)) = 7(x − 6) Ex 12.1, 2 (Method 2) Factorise the following expressions. (i) 7x – 42 7x − 42 = (7 × x) − (7 × 6) Taking 7 common = 7(x − 6)
