Question

Factorize the following
$9 {x}^{2} - 144$

Answer 1

your ans

given:-

9x2-144

(3x)2-(12)2

this is forming an identity

a2-b2=(a+b)(a-b)

so

answer:- (3x+12)(3x-12)

Answer 2

Hello...!!

9x²- 144
(3x)²-(12)²

a²-b² = (a+b) (a-b)

(3x)²-(12)²
= (3x+12)(3x-12)

Hope this helps....!!

^_^