Video • Rational Expressions and Rational Equations (similarities and differences)

Essential Question:

What are the similarities and differences between 

simplifying a rational expression and solving a rational equation?

Part 1:  Simplifying Rational Expressions

(http://youtu.be/KkGS8qqwMGE)

Part 2:  Solving Rational Equations

(http://youtu.be/VuLIYQs4XmY)

HW 5.6b • Due Friday, December 5

Set 5.6b • pp. 272-273

#19–34, 43–44 (all)

Today we learned how to factoring trinomials in the form of
ax^2 + bx + c.

Look at the video and the steps below:

http://youtu.be/V3uzxe2JNW4

Here are the basic steps which are illustrated on the video:

1.  Transform Trinomial into a Quadnomial 

      a.  Using X-Factor Method

      b.  Middle term goes in upper section

      c.  1st term × 3rd term goes in lower section

      d.  Find the two numbers that work

      e.  Rewrite trinomial as quadnomial

2.  Factor Quadnomial using the Factor by Grouping Method

Video • Factoring Trinomials • The X Factor Method

Here are four videos that illustrate the X-Factor Method of factoring trinomials:

Example #1:  x^2 + 9x + 20 
Example #2:  x^2 + 5x – 36
Example #3:  x^2 – 5x – 14
Example #4:  x^2 – 11x + 24

Example #1:  x^2 + 9x + 20

 

Example #2:  x^2 + 5x – 36

Example #3:  x^2 – 5x – 14

Example #4:  x^2 – 11x + 24

CNotes 5.5 • Difference of Two Squares

Here are today's notes. In addition, I have also included a 7:00 video going through the examples we went through in class. You can play the video in the post. If that doesn't work, it can be found at http://youtu.be/42RBEX-oLHw.