Answer: 4,-4 ,2,-2 ,1 and -1 are the possible roots.
Step by step Solution
Here leading coefficient is 3 and constant term is 12
therefore number of rational roots are given by ±[tex]\frac{12}{3}[/tex].
therefore number of roots are ± 4 which is divides by
+4 ,-4 ,+2 ,-2 ,+1 ,-1 ,using rational roots theorem
these are the possible roots of the given function
In order to find the actual roots we can check them using synthetic division method
