Chapter 8.6(b) Solving Quadratic Equations by Factoring.notebook
March 02, 2017
Bellwork:
Homework Questions???
Graph the function for the given domain.
1) 3x + y = 4; D:{­1, 0, 1, 2}
2) y = x + 3 ; D:{all real #s}
Solve the following by factoring:
3) (x ­ 10)(x + 5) = 0
4) x2 + 16x + 48 = 0
5) ­4x2 = 16x + 16
Feb 24­9:28 AM
Chapter 8.6(b) Solving Quadratic Equations by Factoring Be able to solve a quadratic equation by factoring.
Feb 24­9:36 AM
Factoring a Polynomial
Step 1: Standard Form
Step 2: Factor out the GCF
Step 3: Factor (special product, swing method, ...)
Step 4: Check to see that it is completely factored
Solve a Quadratic by Factoring
Step 1: Standard Form
Step 2: Factor
Step 3: Zero Product Property (all factors set = to zero)
Step 4: Solve each equation
Step 5: Check answer
Feb 24­9:48 AM
Feb 24­9:36 AM
Solve the following by factoring:
Solve the following by factoring:
4) 2x2 + 12x = 14
1) 2x(x ­ 4) = 0
5) x2 = ­18x ­ 81
2) 4x2 + 12x = 0
6) ­3x2 + 10 = ­x
3) x2 + 7x ­ 18 = 0
Feb 24­9:41 AM
Feb 24­9:42 AM
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Chapter 8.6(b) Solving Quadratic Equations by Factoring.notebook
March 02, 2017
Factoring by Grouping Worksheets
• May work with one other person
• Voice­level should remain low • May listen to music, one headphone only
Homework
Solving by Factoring WS
• What you don't finish in class is homework
• Ask questions and get help, don't wait until right before your test!
Feb 24­9:44 AM
Feb 24­9:46 AM
Mar 2­1:16 PM
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