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Day 12 factoring trinomials senteo

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Day 12 factoring trinomials senteo

1. 1. AIM: Factoring Trinomials Do Now Solve and check. CHECK 1
2. 2. 2
3. 3. Anticipatory Set Find, correct, and explain the mistakes in the following examples. x2 - 5x - 6 (x - 1)(x + 6) 3
4. 4. 1   A   A B   C   B D   C D 4
5. 5. 2   A   B   A C     B D C D 5
6. 6. 3   A   B   C   A   D B C D 6
7. 7. 4   A   B   C   A D   B C D 7
8. 8. 5   A   B   C   A   D B C D 8
9. 9. 6   A   B   C   A   D B C D 9
10. 10. Factor the trinomial 7   A   A (x +5)(x - 4)  2 B C x  - x - 20 B (x -5)(x +4) C (x +5)(x +4) 10
11. 11. 8   A (x - 8)(x + 3) Factor the trinomial A   B (x + 6)(x - 4) B 2  x + 2x - 24 C (x - 6)(x - 4) C   11
12. 12. Factor the trinomial 9   A A  B A (x - 6)(x + 3) 2 y  - 3y - 18 B C B (x - 6)(x - 3) C  D C (x - 9)(x + 2) 12
13. 13. Factor the trinomial 10   A   A (x + 12)(x - 12) 2 B (x + 12)(x + 12) x - 24x + 144 B   C   C (x - 12)(x - 12) 13
14. 14. BEFORE YOU LEAVE Graphing Connection The goal of factoring is to find the roots of a polynomial. We can graph on the graphing calculator to show the roots. 2 a.) x - x - 20 (x - 5)(x + 4) 14
15. 15. Mr. Tjersland's Math 7 Homework: Factor Numbers 21 to 28 on Homework Sheet 15