If the three integers are , then we have
We can combine the fractions on the left side:
2nd, 4th, and 5th answers are correct
Actually,
I think the question should be, "In what range(s) of x-values must
there be a root of the POLYNOMIAL?"
Unless you are working with some real strange maths, polynomials are
smooth and continuous. If you drew a smooth and continuous line through
the points in the graph, where would the line have to cross the x-axis?
The answer is A) 3.
I hope this helps.