Question

What is

`√(81)`
​

Answer 1

9

Explanation:

9 x 9 = 81

Answer 2

`\: √(81 ) = 9`

Explanation:

`√(81 ) = √(3 * 3 * 3 * 3) \\ = 3 * 3 \\ =9`

You have to prime factorise 81 and then you will get 9 as the answer.