Question

Evaluate:- (2a+3) (2a-3) (4a2+9)​

Answer 1

Answer:

16a^2 - 81

Step-by-step explanation:

(2a+b)(2a-3)(4a^2+9)

(4a^2-9)(4a^2+9)

(4a^2)^2 - (9)^2

16a^2 - 81