Question

find the value of A and B in the following 3+root 7 /3-root 7=a+b root 7​

Answer 1

3+√7/3-√7=a+b√7

by rationslising the denominator

we have

(9+7+6√7)/9-7=a+b√7

(16+6√7)/2=a+b√7

8+3√7=a+b√7

a=8

b=3