Answer:
2
Explanation:
The graph of 5x^2+7x+1 crosses the x-axis (x=0) twice, so there are 2 real solutions.
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The discriminant is b^2 - 4ac, where a=5, b=7, c=1. Its value is ...
... 7^2 -4·5·1 = 29
This value is greater than 0, indicating there are two (2) real roots. They are ...
... (-7±√29)/10