suppose f(x) = (x-10)g(x), where g(x) is some polynomial.
The solution to f(x)=0 is 10.
Suppose g(x) = 0 has no solutions for x = -9, x = 5, and no others.
Find the x-intercepts of the graph of y = f(x).
(-9 and 5 are not the x-intercepts)
