Question

Expand and simplify (root 5 + root 2 ) whole square

Answer 1

(√5+√2)² = (a+b)²

= a² + 2*a*b + b²

(√5)² +2*√5*√2 + (√2)² =

5 + 2√10 + 2

= 7+√10

Answer 2

(a+b)^2=a^2+b^2+2ab..

This identity can be use to solve this question