Use the discriminant to describe the roots of each equation. then select the best description.

x^2+9x+14=0

a) double root
b) real and rational roots
c) real and irrational roots
d) non-real roots

Let's find the discriminant of x^2+9x+14=0.  Here, a=1, b=9 and c=14.

The discriminant is b^2-4ac.  Substituting the above numeric values,
                                9^2-4(1)(14) = 81-56 = 25

The sqrt of 25 is 5.  Thus, your polynomial has two unequal, real roots.

Off the point example:  If the discriminant were zero, your poly would have two real, equal roots.