The ''U'' shaped graph of a quadratic is called a parabola. A quadratic equation has two solutions. Either two distinct real solutions, one double real solution or two imaginary solutions.
All methods start with setting the equation equal to zero.
Solve for x in the following equation. Completing the square Divide both sides of the equation by 2. Add to both sides of the equation. In the equation , a is the coefficient of the term, b is the coefficient of the x term, and c is the constant. So what you will be looking for is where the graph of crosses the x-axis.