Question

="latex-formula">

Answer 1

Answer:

3x

Step-by-step explanation:

$\sqrt{9 {x}^{2} }$

$\sqrt{9} \sqrt{ {x}^{2} }$

$\sqrt{ {3}^{2} } \sqrt{ {x}^{2} }$

$\sqrt{ {3}^{2} } x$

$= 3x$