4x 3 x 2 simplified July 8, 2019 16 32 64 128 4 x + 3(x + 1) + 2 simplified 4x 3 2 x 4 simplified 4x 6 2 x 3 simplified 7x 3 x 2 )- 4x 8 simplified 4 + 4 = 3 4 x 4 x 4 x 4 x 4 cube solver