SOLUTION: my problem is 3acube-26a=9 what i did was moved the 9 over to the left and set equal to zero so now I have 3acubed-26a-9=0 now x=26+- the square root of(-26)cubed-4(3)(-9) all over

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: my problem is 3acube-26a=9 what i did was moved the 9 over to the left and set equal to zero so now I have 3acubed-26a-9=0 now x=26+- the square root of(-26)cubed-4(3)(-9) all over      Log On


   



Question 598538: my problem is 3acube-26a=9 what i did was moved the 9 over to the left and set equal to zero so now I have 3acubed-26a-9=0 now x=26+- the square root of(-26)cubed-4(3)(-9) all over 2(3) came up with x=26+-28/6 this isnt the right answer it's says I must have two answer please help understand

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
First, you do not have a quadratic equation!
What you have posted is:
3a%5E3-26a-9+=+0 This is a cubic equation and, as such, will have three roots.
The roots are:
x%5B1%5D+=+3.1037
x%5B2%5D+=+-2.7526
x%5B3%5D+=+-0.3511