Question

{x}^{2} } " alt=" - \sqrt{49 {x}^{2} } " align="absmiddle" class="latex-formula">
simplify expression
​

Answer 1

Step-by-step explanation:

Given

$- \sqrt{49 {x}^{2} } \\ = - \sqrt{ {7}^{2} {x}^{2} } \\ = - 7x$

Hope it will help :)