Question

evaluate the following using identities(3a-5b)(3a+5b)​

Answer 1

Step-by-step explanation:

We can use the identity (a+b)(a-b) = a^2 - b^2

So (3a-5b)(3a+5b) [ Using (a+b)(a-b) = a^2 - b^2]

= (3a)^2 - (5b)^2

= 9a^2 - 25b^2

Hope this helps...

Answer 2

Hey mate here is your answer ⬇️ ⬇️

(3a+b) (3a-b)

(3a)² - (b)²

9a² - b²