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# March 10, 2014

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### March 10, 2014

1. 1. Today Make Up Tests from Friday?? Submit Friday's Class/Home Work Sample Khan Academy Questions Warm-Up Adding, Subtracting & Multiplying Polynomials
2. 2. 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.
3. 3. This Week's Khan
4. 4. This Week's Khan
5. 5. Warm-Up:(4) 1. Simplify: 9( a2 + 2ab - b2) - 2(a2 + ab) 2. 3. 3x + 1 + 5 4x 2x What is the common denominator? x3 + 2x2 - x We are not dividing monomials, so the rules are a x bit different. ....Which brings us to today's class notes 4. Divide:
6. 6. Polynomial Division Part I: Dividing Monomial by Monomial: 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
7. 7. x+x 2x x• x 2 x
8. 8. 2x + 3x 2x•3x 5x 2 6x
9. 9. 2 4x + 4x NOT LIKE TERMS! 2• 4x 4x 3 16x
10. 10. 2 5x + 2 6x 2 x 2•x2 5x 4 5x
11. 11. (3x4 – 5x2 + 1) + (6x4 + 2x2 – 7) 4 9x – 2 3x –6
12. 12. (-2a5 – 2a4 + 7a) + (6a4 + 2a2 – 2a) 5+ -2a 4 4a + 2 2a + 5a
13. 13. (-c5 + 8c + 2) – (-2c5 + 6c – 1) – 5 (-c + 8c + 2) + 5 c 5 (2c – 6c + 1) + 2c + 3
14. 14. Class Work: See Handout