Related Post: 4 2 X 0 6 X 4 2x 2 63 0 X 4 X 2 6x 0 4 X 2 5x 6 0 4 X 20 * 2 X 64 0 4 X 2 2 64 0 X2 4 Root 2 X 6 0 4 2 X 8 0 X 5 6 X2 4 Root 2 X 6 0 By Quadratic Formula X2 4 Root 2 X 6 0 By Completing The Square