Answer:
Possible rational zeroes are [tex]\pm1,\pm2,\pm3,\pm6,\pm9,\pm18[/tex]
Step-by-step explanation:
The rational zero theorem states that potential zeroes of a given polynomial function written in descending order are equal to [tex]\pm\frac{factors\: of\: the\: constant\: term}{factors\: of\: the\: leading\: coeficient\: term}[/tex]