Answer:
The roots are the x-intercepts, where the parabola crosses the x-axis. If the parabola opens up and it's vertex is below the x-axis then it crosses the x-axis in two places and has two (real) roots.
Step-by-step explanation:
h[g(-2)] = 12
hope this helps
hbsmbs
qwdm qbmd
S 67.50° W