Question

Whole square root of (2+square root of x)=3,then x is

Answer 1

$\sqrt { 2 + \sqrt {x} } = 3$
take both sides square
$2 + \sqrt {x} = 9$
$\sqrt {x} = 7$
again take square both sides,
x = 49

Answer 2

√2+√x=3
2+√x=9
√x=9-2
√x=7
x=49