1. QUADRATIC FORMULA November 17, 2009

2. Objectives  Apply the quadratic formula  Use words to describe the process of the quadratic formula, verbally  Practice using the quadratic formula, in writing

3. 1) x 2 -5x-14=0

4. 2) x 2 -2x-35=0

5. 3) t 2 +8t-65=0

6. 4) q 2 +3q-130=0

7. 5) 3x 2 +x-10=0

8. 6) 3x 2 +2x-1=0  3x 2 +2x-1=0

9. 7) 16t 2 -24t+9=0

10. 8) 6m 2 -23m+10=0

11. What if the discriminant is negative? i = √-1 So, √-36= i √36=6i

12. 4x 2 + 5x + 2 = 0

13. 12x 2 + 4x + 5 = 0

14. 9x 2 - 12x + 5 = 0

15. 11x 2 + 11x + 4 = 0

16. 5x 2 - 7x + 9 = 0

17. Your assignment  Page 1049  #9-20 – quadratic formula only