SOLUTION: Find b^2 - 4ac and the number of real solutions to equation. 5x^2-7=0

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Question 197333: Find b^2 - 4ac and the number of real solutions to
equation.
5x^2-7=0
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
ax%5E2%2Bbx%2Bc=0
:
Discriminant=0%5E2-4%285%29%28-7%29=140
;
therefore since D>0 there are 2 real solutions