2. To write the sum of polynomials in descending orderFrameworks: 10.P.3

3. To add polynomials, add like terms: Add: 7x2 - 2x + 1 4x2 + 3x - 6 11x2 + x - 5

4. Sometimes you have to sort first: Add: 9y3 - 7y + 8 + y2 7y – y3 – 3y4 - 3 Sort: 9y3 + y2 - 7y + 8 – 3y4 – y3 + 7y - 3

5. Add: 5x2 + 7x5 - 8 -9x2 + x – 2 – 6x5

6. You can also use a horizontal form: 5x2 + 7x5 - 8 -9x2 + x – 2 – 6x5 Sort in descending order: 7x5 – 6x5 + 5x2 -9x2 + x – 8 - 2

7. How would you simplify . . . -(5x2 + 7x5 - 8) Change the sign of each term.

8. Subtraction (5a2 - 3a + 6)- (2a2 - 3a - 2) Add the opposite: 5a2 - 3a + 6 -2a2 + 3a + 2

9. Order Subtract0.2x3 - .5x + 0.1 from 0.4x2 + 0.3x – 0.7 Which one gets subtracted?

10. Turn to page 224 Do 1-10