## SOLVING QUADRATIC EQUATIONS Note:

• A quadratic equation is a polynomial equation of degree 2.

• 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.

• There are several methods you can use to solve a quadratic equation:

1. Factoring
2. Completing the Square
3. Quadratic Formula
4. Graphing

• All methods start with setting the equation equal to zero.

Solve for x in the following equation.

If you would like to see the answers and the solutions, click on solution.

Problem 4.5a: Solution

Problem 4.5b: Solution

Problem 4.5c: Solution

Problem 4.5d: Solution

If you would like to go back to the equation table of contents, click on Contents [Algebra] [Trigonometry]
[Geometry] [Differential Equations]
[Calculus] [Complex Variables] [Matrix Algebra] S. O. S. MATHematics home page

Do you need more help? Please post your question on our S.O.S. Mathematics CyberBoard. Author: Nancy Marcus