## rebecca1233 Solve by using the quadratic formula. 3x^2 - 4x = 2 one year ago one year ago

1. rebecca1233

@jasonxx

2. brandonloves

I could be totally off, but I just wanted to give it a shot. I got 8/3, 3 again, I could be way wrong, but I just wanted to try it/see if I remembered. good luck you know the formula right?

3. rebecca1233

|dw:1352320744523:dw|

4. rebecca1233

|dw:1352320782461:dw|

5. rebecca1233

|dw:1352320879213:dw|

6. rebecca1233

or none of the above

7. brandonloves

|dw:1352320868071:dw| I think I'm right up till this point, but I think I get messed up after that.

8. rebecca1233

the answer is the last one i believe?

9. brandonloves

oh, I see how you got the 40. isn't it -4(a)(c) though? I got -24 + 16 to get -8 under the radical

10. rebecca1233

|dw:1352321326332:dw|

11. rebecca1233

idk im confused

12. brandonloves
13. rebecca1233

@.UserNotFound. am i correct because

14. rebecca1233

i need help

15. .UserNotFound.
16. brandonloves

yea, and I'm not much help haha. I tried though. I'd check out khanacademy.org or watch some youtube videos till someone with more quadform exp can help hah

17. rebecca1233

i just wanna know if i am correct

18. jasonxx

let me check

19. jasonxx

$x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }=\frac{ 4 \pm \sqrt{16-4*3*(-2)} }{ 2*3 }= \frac{ 4 \pm \sqrt{40} }{ 6 }$ @rebecca1233

20. jasonxx

@rebecca1233 come on now show me , yor answer is here