Related Post: 9x 2 8x 4 0 X 2 8x 4 0 X 2 8x 4 0 Complete The Square X 2 8x 4 0 Quadratic Formula X 2 8x 4y 4 0 X 2 8x 12y 4 0 X 3 5x 2 8x 4 0 2x 3 X 2 8x 4 0 18x 3 − 9x 2 − 8x 4 0 4/9x=-8