A cube has side length x. One side of the cube is increased by 4 inches, and another side is doubled. The volume of
the new rectangular prism is 450 cubic inches. The equation 2x3 + 8x2 - 450 can be used to find x. What was the side
length of the original cube? Use a graphing calculator and a system of equations to find the answer.
3
4 inches
O 5 inches
O 9 inches
0 10 inches