Answer:
The roots are x = 1 and x = 3
Explanation:
The roots of a polynomial are those x-values for which the polynomial renders zero. Therefore, you need to look at the points of the parabola that intersect the x-axis (since they correspond to y=0:
Please see attached image for the location of the two points that cross the x-axis. They are located at (1, 0) and at (3, 0), therefore, the roots of the parabola are: x = 1 and x = 3.