5.6%20The%20Quadratic%20Formula%20and%20the%20Discriminant

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5.6 The Quadratic Formula and the Discriminant
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Objectives

1. Solve quadratic equations using the quadratic
   formula.
2. Assignment 17-73 odd

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2 Real Solutions
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1 Real Solution
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0 Real Solution. 2 Complex Solutions. (Imaginary)
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2 Real Solutions
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1 Real Solution
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0 Real Solution. 2 Complex Solutions. (Imaginary)
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2 Real Solutions
1 Real Solution
0 Real Solutions 2 complex solutions
is called the Discriminant.
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The Quadratic Formula
Starting with any quadratic equation
We could solve it by completing the square and
develop a formula that could be used to solve any
quadratic equation.
Here is the solution to the quadratic equation
above
We will call this the Quadratic Formula.
Memorize it.
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Solve this quadratic equation using the quadratic
formula