SOLUTION: how many real solutions are in -x^2+9x+7=0

Algebra ->  Real-numbers -> SOLUTION: how many real solutions are in -x^2+9x+7=0       Log On


   



Question 875633: how many real solutions are in -x^2+9x+7=0

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Check the discriminant.
Disc < 0 no real
Disc = 0, 2 real, same number
Disc > 0, 2 different reals