What is the first step in solving the quadratic equation x² - 40 = 0?

Rewrite the following without an exponent. (5/8)-1

Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4