Question

simplify:- (√5+√7)^2

Answer 1

Answer:

(√5+√7)²

using (a+b)²=a²+b²+2ab

(√5)²+(√7)²+2(√5)(√7)

5+7+2√35

12+2√35

Answer 2

Answer:

(√5+√7)²

= (√5)²+(√7)²+2(√5)(√7)

= 5+7+2√35

= 12+2√35

Using the identity of (a+b)² = a²+b²+2ab.