Advertisements
Advertisements
Question
Factorise the following expression:
7x − 42
Sum
Advertisements
Solution
7x = 7 × x
42 = 2 × 3 × 7
The common factor is 7.
∴ 7x − 42
= (7 × x) − (2 × 3 × 7)
= 7 (x − 6)
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Factorise the following expression:
6p − 12q
Factorise the following expression:
7a2 + 14a
Factorise.
15pq + 15 + 9q + 25p
Factorise : 9x 2 + 3x - 8y - 64y2
Find the value of : `[(6.7)^2 - (3.3)^2]/[6.7 - 3.3]`
Factorise : 6x2y + 9xy2 + 4y3
Factorise : 17a6b8 - 34a4b6 + 51a2b4
factorise : 8(2a + 3b)3 - 12(2a + 3b)2
factorise : a2 - ab - 3a + 3b
Factorise: a2 - 0·36 b2
