Question

1. Evaluate each of the following using identities : (h) (√5a+√3a) ²​

Answer 1

Answer:

Apply (a+b)²=a²+b²+2ab

you will get

5a²+3a²+30a² =38a²

and if it is (√5a+√3b)

then 5a²+3b²+30ab