X 3 4x 2 12x 0 July 8, 2019 16 32 64 128 X 4 3x 3 4x 2 12x 0 X 3 12x 2 4x 48 0 X 4 4x 3 2x 2 12x 9 0 X 4 4x 3 12x 2 x 1 0 X 4 4x 3 x 2 12x 12 0 X 4 4x 3 18x 2 12x 9 0 X 3 4x 2 12x 27 0 X 3 )- 4x 2 )- 12x )/( x 3 ≥ 0 X 4 4x 3 2x 2 12x 3 0 Solve x 4 4x 3 2x 2 12x 9 0