1. Lesson 13-2 Pages 674-677 Adding Polynomials

2. What you will learn! 1. How to add polynomials.

4. What you really need to know! Add polynomials by combining like terms, which are monomials that contain the same variables to the same power.

6. Example 1: Find the sum:9w−4 +w+5 10w+1 (9w – 4) + (w +5)

7. Example 1b: Find the sum: (6x 2 – 3x + 1) + (x 2 + x – 1) 6x 2 −3x+1 + x2x2x2x2+x−1 7x 2 -2x

8. Example 1c: Find the sum: 5a 3 + (2a – 4a) + 7 5a 3 – 2a + 7 5a 3 + -2a + 7

9. Example 1d: Find the sum: (4x 2 – 3y 2 ) + (x 2 + 4xy + y 2 ) 4x 2 − 3y 2 + x2x2x2x2+4xy+ y2y2y2y2 5x 2 +4xy− 2y 2

10. Example 2: The length of a rectangle is 3x 2 + 2x – 5 units and the width is 8x – 1 units. Find the perimeter.

11. Example 2: 3x 2 +2x−5 8x−1 +2x−5 +8x−1 6x 2 +20x−12

12. Example 3: The length of a rectangle is 3x 2 + 2x – 5 units and the width is 8x – 1 units. Find the length of the rectangle if x = -3.

13. 3x 2 + 2x – 5 ; x = -3 3(-3) 2 + 2(-3) – 5 3(9) + 2(-3) – 5 27 + -6 – 5 21 – 516 units

14. Page 676 Guided Practice #’s 4-10

15. Pages 674-675 with someone at home and study examples! Read:

16. Homework: Pages 676-677 #’s 12-28 even #’s 34-48 all

17. Page 756 Lesson 13-2