X 4 9 2. Depending on the values of the discriminant we shall see some cases about the nature of roots of different quadratic equations. The graph does not cross the x-axis.
The Quadratic Formula x bb24ac 2a x b b 2 4 a c 2 a is found by completing the square of the quadratic equation.
X b b2 4ac 2a Quadratic Formula. Complete the square on the left slide 2ax b2 b2 4ac D. I have no idea where to start for this problem how do I find b2 - ac I do not understand anything it is saying in the readings either. Enter your answers as a comma-separated list 42 11x - 45 0 Need Help.