Hank has the expression - 4 squared square root of x. What is the value of x that makes the expression equal to - 20?

X should be around 1.5625, assuming that - 4 is squared is not in a parenthesis. So, the problem should be - 20=-4^2 (sqrtx). Divide - 20 by - 16 to get 1.25. Then square 1.25 and sqrt x to get 1.5625.