Question

D.1)Find the following using suitable identity.
(4a-3b) (4a+3b) solve​

Answer 1

Answer:

16a²-9b²

Step-by-step explanation:

we know that (x+y)(x-y)=x²-y²

but here given problem is (4a+3b)(4a-3b)

x=4a

y=4b

so (4a+3b)(4a-3b) = (4a)²-(3b)² = 16a²-9b²