What is the reason for each step in the solution of the equation?

Rounded to the nearest tenth, what is the value of x

Biggest exam of the which of the following are polynomial functions?

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _