Answer:
±1, ±2, ±3, ±4, ±6 and ±12
Step-by-step explanation:
The potential roots are obtained as following:
potential roots = factors of the constant term / factors of leading coefficient
The constant term is -12, its factors are ±1, ±2, ±3, ±4, ±6 and ±12
The leading coefficient is 1, its factors are ±1
Therefore the potential roots are ±1, ±2, ±3, ±4, ±6 and ±12