Factorize each of the following expression:
Question:
Factorize each of the following expression:
12m2 − 27
Solution:
$12 m^{2}-27$
$=3\left(4 m^{2}-9\right)$
$=3\left[(2 m)^{2}-3^{2}\right]$
$=3(2 m-3)(2 m+3)$