b. 8x3 + 24x + 27 d. 8x - 27 IV. Solve the following problems. Show your solution. 4x-1 1. What is the area of a square whose side is 4x -1? a. 16x4 c. 8x2 - 2 b. 16x2-8x + 1 d. 16x2 + 8x - 1 2. What is the volume of a cube whose side is 2x + 5? a. 8x3 + 60x2 + 150x + 125 c. 4x2 + 20x + 25 b. 8x3 - 60x2+ 150x - 125 d. 4x2 + 10x + 25