\sqrt{9x^2

Question

`\sqrt{9x^2`

Answer 1

3x

Explanation:

`\sqrt{9 {x}^(2) }`

`√(9) \sqrt{ {x}^(2) }`

`\sqrt{ {3}^(2) } \sqrt{ {x}^(2) }`

`\sqrt{ {3}^(2) } x`

`= 3x`