SOLUTION: what is the number of real solutions in -x^2+9x+7=0

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Question 747101: what is the number of real solutions in -x^2+9x+7=0
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
We can use the discriminant to determine the number and type of solutions:


%0D%0A+sqrt%28+9%5E2-4%2A%28-1%29%2A7+%29=sqrt%28109%29%0D%0A


since the discriminant is real and not 0 we know that there are 2 real solutions

:)