Download presentation

Presentation is loading. Please wait.

Published byNickolas Titlow Modified over 2 years ago

1
**8-4B Solving Quadratic Equations when the Leading Coefficient isn’t 1.**

X-Factor method If you factor out a GMF: before using the X figure, keep it, after using the X figure, discard it. Algebra Glencoe McGraw-Hill Linda Stamper

2
In the previous lesson you factored quadratic trinomials when the leading coefficient wasn’t 1. Today you will use the factors to solve quadratic equations. To solve a quadratic equation set the factors equal to zero and then solve the equations.

3
**Do not confuse instructions. Make sure you understand what it means to:**

Solve Factor

4
**Can you factor out a greatest monomial factor?**

Solve. You must keep the greatest monomial factor that is pulled out before using the X figure! -10 - 5 -5 + 2 2 -3 Can you factor out a greatest monomial factor? Set the factors equal to zero and solve. ( )( ) Do not discard the GMF from step 2. Check using FOIL.

5
Solve by factoring. 3 - 3 -3 - 1 -1 -4 ( )( )

6
**Can you factor out a greatest monomial factor?**

Example 1 Solve. 6 + 3 3 + 2 2 5 Can you factor out a greatest monomial factor? ( )( ) Set the factors equal to zero and solve.

7
White Board Practice

8
**Example 2 Solve. Example 3 Solve. -22 -18 + 22 22 - 1 -1 21 + 6 6 - 3**

-3 Can you factor out a greatest monomial factor? 3 Can you factor out a greatest monomial factor? ( )( ) ( )( )

9
**Example 5 Solve. Example 4 Solve. 6 60 + 6 6 + 1 1 - 10 -10 -6 - 6 7**

Can you factor out a greatest monomial factor? Can you factor out a greatest monomial factor? 7 -16 ( )( ) ( )( )

10
**Example 7 Solve. Example 6 Solve. 18 -12 + 6 6 + 3 3 + 4 4 - 3 -3 9 1**

Can you factor out a greatest monomial factor? Can you factor out a greatest monomial factor? + 4 4 - 3 -3 9 1 ( )( ) ( )( )

11
**Can you factor out a greatest monomial factor?**

Example 8 Solve. You must keep the greatest monomial factor that is pulled out before using the X figure! -10 - 5 -5 + 2 2 -3 Can you factor out a greatest monomial factor? Set the factors equal to zero and solve. ( )( )

12
**Example 9 Solve. Example 10 Solve. 36 -12 + 9 9 + 4 4 - 6 -6 + 2 2 13**

Can you factor out a greatest monomial factor? 13 -4 Can you factor out a greatest monomial factor? ( )( ) ( )( )

13
Homework 8-A10 Pages # 23–30,54-59.

Similar presentations

Presentation is loading. Please wait....

OK

Digital Lessons on Factoring

Digital Lessons on Factoring

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Animated ppt on magnetism quiz Ppt on flash animation tutorial Ppt on weapons of mass destruction robin Ppt on combination of resistances Ppt on new zealand culture past Ppt on cost leadership strategy Ppt on carry save adder Ppt on intelligent manufacturing system Ppt on fair and lovely Ppt on conservation of environment project