Chapter 6 Factoring and Quadratic Equations Section 6

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Chapter 6 Factoring and Quadratic Equations Section 6 Solving Quadratic Equations by Factoring Copyright

Chapter 6 Factoring and Quadratic Equations Section 6 Solving Quadratic Equations by Factoring Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 1

Concept Zero-Factor Property of Real Numbers If , then Copyright © 2016, 2012, and

Concept Zero-Factor Property of Real Numbers If , then Copyright © 2016, 2012, and 2009 Pearson Education, Inc. or 2

Example 1 Zero-Factor Property of Real Numbers Solve: or Copyright © 2016, 2012, and

Example 1 Zero-Factor Property of Real Numbers Solve: or Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 3

Concept Solving Quadratic Equations by Factoring 1. Write the equation in standard form: 2.

Concept Solving Quadratic Equations by Factoring 1. Write the equation in standard form: 2. Factor the expression completely. 3. Set each factor equal to 0 and solve the resulting equations. 4. We should finish by checking our solutions. Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 4

Example 2 Solving Quadratic Equations by Factoring Solve: or Copyright © 2016, 2012, and

Example 2 Solving Quadratic Equations by Factoring Solve: or Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 5

Example Solving Quadratic Equations by Factoring 3 Solve: or Copyright © 2016, 2012, and

Example Solving Quadratic Equations by Factoring 3 Solve: or Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 6

Concept Finding a Quadratic Equation Given Two Solutions If and are solutions to a

Concept Finding a Quadratic Equation Given Two Solutions If and are solutions to a quadratic equation, then the equation must be of the form Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 7

Example 4 Finding a Quadratic Equation Given Two Solutions Find a quadratic equation with

Example 4 Finding a Quadratic Equation Given Two Solutions Find a quadratic equation with this solution set: Copyright © 2016, 2012, and 2009 Pearson Education, Inc. 8