Question

simplify the expression

Answer 1

Hope this helps ya ✌️✌️

P.S. I’ve used the identity (a+b)² = a²+b² +2ab

Answer 2

a
$( a + b) {?}^{2} = a {?}^{2} + b {?}^{2} + 2ab$
$so \: 5 + 2 + \sqrt[2?]{?10}$
=
$7 + \sqrt[2]{?10}$