SOLUTION: My question is relating to 5x=-4x^2-2 I know I use the qadratic equation of x= -b+- b^2-4ac/2a. I can't put the square root sign in the fornula. anyways, near the end I have

Question 46159: My question is relating to 5x=-4x^2-2
I know I use the qadratic equation of x= -b+- b^2-4ac/2a. I can't put the square root sign in the fornula.
anyways, near the end I have a - on the top and bottom. do i only use the (i) on the top, or both?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Let's see.
Solve:
Rewrite in standard form.
You are correct in using the quadratic formula because this does not factor. Here, a = 4, b = 5, and c = 2

The roots are:

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