Question

1) (3√7+6)(3√7+6)
2) (√7+√5) (√7-√5)
3) 3(√2-2√3)
4) (3√5√7)(3√3+2)
5) ( 6+4√2)^2

slove the above questions using identities.

plz answer step by step ​

Answer 1

see the attachment hope this will help you