Question

="( -4 - \sqrt{ - 6) {?}^{2} } " alt="( -4 - \sqrt{ - 6) {?}^{2} } " align="absmiddle" class="latex-formula">
how to perform the operation

Answer 1

$\bf -4-\sqrt{(-6)^2}\implies -4-(-6)\implies \stackrel{\textit{recall minus times minus is \underline{plus}}}{-4+6\implies 2}$