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# When does the quadratic equation -x^2+3x+A=0 have two distinct real roots? watch

1. The quadratic equation of -x^2+3x+A=0 gets the answers of x=5 or x=-2 but not sure about the real roots. Thank you for any help
2. (Original post by Rebecca Porter)
The quadratic equation of -x^2+3x+A=0 gets the answers of x=5 or x=-2 but not sure about the real roots. Thank you for any help
B^2 - 4ac is 9 + 4A. (Discriminant)

So actually, for certain values of A there aren't real roots.

As you've got x=5 and x=2 you must have found or been given what A is at some point. Is this helpful?

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Updated: January 11, 2017
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