1. 10.6B Best Method

2. Standard Form:

3. Square Root Method: 1. When b = 0 2. Get x 2 alone 3. Square root both sides 4. plus/minus answer

4. Factoring: 1. Hockey stick and t-chart 2. Split, Set, SWYG

5. Quadratic Formula: 1. Can’t factor 2. Put in standard form 3.

6. Example 1: Tell what method you would use to solve the quadratic equation and solve. Explain your choice.

7. a) Method: __________________ Reason: _____________________________ Solution: Quadratic formula Can’t factor

8. a b c 16-5 –6 ± (6) 2 –4(1) (-5) 2 (1) x = -6 ± 36+20 2 x = -6 ± 56 2 =

9. -6 ± 56 2 8 7 2 4 2 2 = = –6 ± 2 x = =

10. b) Method: __________________ Reason: _____________________________ Solution: factor Hockey stick x x+ 4

11. c) Method: __________________ Reason: _____________________________ Solution: t-chart factor 5x x +4 +1

12. d) Method: _____________________________ Reason: _____________________________ Solution: Square root method b = 0

13. e) Method: __________________ Reason: _____________________________ Solution: t-chart factor x x-2 +3

14. f) Method: __________________ Reason: _____________________________ Solution: Square root b = 0

16. g) Method: __________________ Reason: _____________________________ Solution: Quadratic formula Can’t factor

17. a b c 1-61 -(-6) ± (-6) 2 –4(1) 2 x = 6 ± 36–4 2 x = 6 ± 32 2 =

18. 6 ± 2 16 2 4 4 = 6 ± 2 x = =

19. h) Method: __________________ Reason: _____________________________ Solution: Quadratic formula Can’t factor

20. a b c 1-41 -(-4) ± (-4) 2 –4(1) 2 x = 4 ± 16–4 2 x = 4 ± 12 2 =

21. 4 ± 2 4 3 2 2 = 4 ± 2 x = =

22. h) Method: __________________ Reason: _____________________________ Solution: factor Hockey stick and t-chart x x2x2 + 4x + 3 x x+1 +3