Answer
The answer is below.
Work Step by Step
$\sqrt{x^2} = x $ when x is positive. Thus, $\sqrt{x^2} = x$ for 5, 4, and 9. $\sqrt{x^2} $ never equals negative x, for a square root is never equal to a negative number. Thus, $\sqrt{x^2} $ equals the absolute value of x for negative values of x, including -3, -8, and -11.
