Question

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

Answer 1

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.