Advertisements
Advertisements
Question
Factorise the following expression.
25m2 + 30m + 9
Sum
Advertisements
Solution
25m2 + 30m + 9
On writing it as follows:
(5m)2 + 2 × 5m × 3 + (3)2
Using the identity a2 + 2ab + b2 = (a + b)2
= (5m + 3)2
= (5m + 3) (5m + 3)
shaalaa.com
Is there an error in this question or solution?
Chapter 12: Factorisation - EXERCISE 12.2 [Page 151]
APPEARS IN
RELATED QUESTIONS
Factorise the following expression.
a2 + 8a + 16
Factorise the following expression.
121b2 − 88bc + 16c2
Factorise.
49x2 − 36
Factorise.
25a2 − 4b2 + 28bc − 49c2
Factorise the expression.
2x3 + 2xy2 + 2xz2
Factorise the expression.
5y2 − 20y − 8z + 2yz
Factorise.
x4 − (y + z)4
Factorise the following expression.
p2 + 6p + 8
Factorise the given expression.
q2 − 10q + 21
Factorise 49p2 – 36
