Question

How to solve this?
$x ^{2} = 81$

Answer 1

Heya User !!!!

x² = 81

Talking squareroot both sides we get,

x = 9


Hopes it helps ☺

Answer 2

Hey friend ☺ here is the answer

${x}^{2} = 81 \\ x = \sqrt{81} \\ x = \sqrt{9 \times 9} \\ x = \sqrt{ {9}^{2} } \\ x = { {9}^{2} }^{ \frac{1}{2} } \\ x = 9$

Hope this helps you..