There are two strategies you can use to add/subtract polynomials.
Strategy 1 is called ______________(side to side)
Strategy 2 is called ______________ (Up and down)
Horizontally
Vertically
-6 + 13 =
7
(5x2 + 7x) + (3x2 + 2x)
8x2 + 9x
(6x2 + 7) - (4x2 + 2)
2x2 + 5
How long have we known eachother?
6 months!
When using the HORIZONTAL strategy, you really use this skill from back in Chapter 1.
Hint: Grouping things together....
Combining like terms!
6 - 13 =
-7
(10x2 + 7x) + (4x2 - 3x)
14x2 + 4x
(6x2 - 2x) - (2x2 + 5x)
4x2 - 7x
Mr. Ty wants to get back into a hobby he started in college. What is this hobby?

When using VERTICAL strategy you first need to ____________ the polynomials on top of one another before solving.
Stack!
-6x - 13x =
-19x
(8x2 + 4x -5) + (-2x2 + 5x + 8)
6x2 + 9x + 3
(6x2 + 7x + 3) - (4x2 + 3x - 6)
(2x2 + 4x + 9)
How big is Mr. Ty's Baby?
Fruit?
Animal?
Sports Equipment?
Watermelon
Housecat
Basketball
For Both strategies, Like terms and stacks are based on the ____________________ in each polynomial.
Exponents!
- 6x2 + - 13x2 =
-19x2
(-5x3 + 4x2 - 2x) + (-3x3 - 2x2 + 7x)
-8x2 + 2x2 + 5x
-10x3 +3x2 +4x
How many years has Mr. Ty been married?
6 in june!
When in doubt, use a _________________________!
Calculator
- 6x - - 13x =
7x3
(-2x3 - 4x2 - 5x) + (-4x3 - 3x2 - x)
-6x2 - 7x2 - 6x
(-5x3 + 4x2 - 3x) - (-3x3 -2x2 - 7x)
-2x3 - 2x2 + 4x
What is the most important step someone can take?
The next one.