Question

3+√7/3-4√7 find a+b√7​

Answer 1

Answer:

3+√7 /3-4√7×3+4√7/3-4√7=a+b√7

3(3+4√7)+√7(3+4√7)/9-112=a+b√7

9+12√7+3√7+28/-103=a+b√7

39+15√7/-103 =a+b√7

39/-103+15√7/-103=a+b√7

on comparing

a=39/-103 ,b√7=15√7/-103

b=15/-103