Download - March 10, 2014
Today
Make Up Tests from Friday??
Submit Friday's Class/Home Work
Sample Khan Academy Questions
Warm-Up
Adding, Subtracting & Multiplying
Polynomials
Khan Academy This Week:
Adding & Subtracting Polynomials
Multiplying Expressions 1
Multiplying Polynomials 2
On-Line Khan due before March 16, 7:00 pm.
Alt Khan: Due by end of day March 17. **You must show all
work to receive any credit.
This Week's Khan
This Week's Khan
Warm-Up:(4)
1. Simplify: 9( a2 + 2ab - b2) - 2(a2 + ab)
4. Divide: x3 + 2x2 - xx
3. 3x + 1 + 54x 2x
We are not dividing monomials, so the rules are a bit different.
2.
What is the common denominator?
....Which brings us to today's class notes
Part II: Dividing by a Monomial:A. Take each term in the numerator and divide by the denominator. The result is now a monomial divided by a monomial for each term. Solve as usual.
18x4 -10x2 + 6x7
2x2
Part I: Dividing Monomial by Monomial:
Polynomial Division
x + x
2x
x•x
x2
2x + 3x
5x
2x•3x
6x2
4x2 + 4xNOT
LIKE
TERMS!
4x2 • 4x
16x3
5x2 + x2
6x2
5x2•x2
5x4
(3x4 – 5x2 + 1) + (6x4 + 2x2 – 7)
9x4 – 3x2 – 6
(-2a5 – 2a4 + 7a) + (6a4 + 2a2 – 2a)
-2a5 + 4a4 + 5a+ 2a2
(-c5 + 8c + 2) – (-2c5 + 6c – 1)
c5 + 3+ 2c
(-c5 + 8c + 2) + (2c5 – 6c + 1)
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Class Work: See Handout