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