Answer:
x = 3, -1, 2, -2
Explanation:

6(
-3)(
+4)(
+1) = 0
6(
-3)(
+2)(
-2)(
+1) = 0
Using the fact that (
+4) = (
-2)(
+2) - known as the difference of two squares rule
Thus solve by inserting values of
that will result in the equation equating to 0.
ie: if
= 3,
6(3-3)(3+2)(3-2)(3+1) = 0
0=0
RHS = LHS therefore true