SOLUTION: Solve using the square root method or quadratic formula. 20x^2 - 31x-9 =0 I cant figure this one out because the numbers are so big, can you help me please?

Question 87519: Solve using the square root method or quadratic formula.
20x^2 - 31x-9 =0
I cant figure this one out because the numbers are so big, can you help me please?

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve for x:
Use the quadratic formula:
Here, a = 20, b = -31, and c = -9

...and + or -, so...
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