1. 8.1 Adding and Subtracting Polynomials
Objective: SWBAT add and subtract polynomials and classify polynomials by degree and terms.

2. Mini Quiz 9 For the following numbers: 14, 20, 18, 10, 18
Find the mean
Find the median
Find the mode

3. CAHSEE Review
Part
Whole
Probability =

4. CAHSEE Review

5. Polynomials:
-3x
2x2 – 8x4
-9x3 – 4x – 7x2 + 8 6
5x – 4x2 + 1

6. 1. Raise your paper, if you have a linear expression.

7. 2. Add polynomials 1 and 5
-4x2 + 2x + 1

8. 3. Raise your paper, if you have a trinomial.
5x – 4x2 + 1

9. 4. Add polynomials 2 and 3
-8x4 – 9x3 – 5x2 – 4x + 8

10. 5. Raise your paper, if you have a cubic expression.
-9x3 – 4x – 7x2 + 8

11. 6. Subtract polynomials 2 and 5
-8x4 + 6x2 – 5x – 1

12. 7. Raise your paper, if you have a monomial.
-3x 6

13. 8. Subtract polynomials 3 and 4
-9x3 – 7x2 – 4x + 2

14. 9. Raise your paper, if you have a quadratic expression
5x – 4x2 + 1

15. 10. Add polynomials 1 and 4
-3x + 6

16. 11. Raise your paper, if you have a constant expression.6

17. 12. Subtract polynomials 3 and 3

18. 13. Raise your paper, if you have a quartic expression
2x2 – 8x4

19. 14. Add polynomials 1, 2, and 3
-8x4 – 9x3 – 5x2 – 7x + 8

20. 15. Raise your paper, if you have a binomial.
2x2 – 8x4

21. 16. Add polynomials 5 and 3, then subtract 4
-9x3 – 11x2 + x + 3

22. 17. Raise your paper, if you have a polynomial.
-3x
2x2 – 8x4
-9x3 – 4x – 7x2 + 8 6
5x – 4x2 + 1

23. 18. Subtract polynomials 2 and 4, and add 3
-8x4 – 9x3 – 5x2 – 4x + 2

24. 19. Add polynomials 4 and 4, then subtract 5.
4x2 – 5x + 11

25. 20. Subtract polynomials 5 and 2, then subtract polynomial 1
8x4 - 6x2 + 8x + 1

26. 21. Add polynomials 2, 3, 4 and 5
-8x4 – 9x3 – 9x2 – 2x + 9

27. Can anybody tell me what kind of polynomial they have?
Example: 3x2 – 4x3
This is a cubic trinomial!

28. Wrap Up Classifying Polynomials
By Degree
Constant (0)
Linear (1)
Quadratic (2)
Cubic (3)
Quartic (4)
Adding Polynomials (combine like terms)
Subtracting Polynomials
HW: P #2-40 even
Write DLUQ for notes
- Number of Terms
Monomial (1)
Binomial (2)
Trinomial (3)
Polynomial (4+)