## whatevs 4 years ago 0=x^2-9x+4

1. whatevs

I can't figure out how to find the two solutions? how can you factor this?

2. pratu043

3. anfar

use the formula ax^2+bx+c $x=(-b \pm \sqrt{b ^{2}-4ac})/2a$

4. whatevs

oh ok

5. whatevs

b= -9??

6. partyrainbow276

wait i got it

7. pratu043

|dw:1320973352751:dw|

8. partyrainbow276

For example, for the quadratic equation x2 + x - 12 = 0, x = 3 and x = -4 are both roots ... 9x2 = 81 (a = 9, b = 0, c = -81 since we could subtract 81 from both sides) ...

9. josecastaneda

x=6.21

10. pratu043

yes b = -9

11. partyrainbow276

Quadratic Equations AlgebraIn this case, the equation x2 - x - 2 = 0 can be broken apart into two factors [i.e., ... 9x2 = 81 (a = 9, b = 0, c = -81 since we could subtract 81 from both sides) ...

12. anfar

yes a=1, b=-9,c=4

13. whatevs

I got 9 +- sqrt 65 / 2

14. anfar

yes (9+- sqrt65)/2

15. whatevs

16. partyrainbow276

Exactly

17. partyrainbow276

can u helpp me

18. partyrainbow276

or someone

19. josecastaneda

20. partyrainbow276

can u help meeee plzzz

21. josecastaneda

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