Question

What is the root? alt="3- \sqrt{x} =0 " align="absmiddle" class="latex-formula">

Answer 1

To solve for x, add 3 to both sides, multiply both sides by -1, then take the square both sides.
$3- \sqrt{x} =0\\- \sqrt{x} =-3 \\ \sqrt{x} =3 \\ x=3^2=9$