Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Explore in-depth answers to your questions from a knowledgeable community of experts across different fields. Connect with a community of professionals ready to help you find accurate solutions to your questions quickly and efficiently.

Check all of the numbers that are potential rational roots of f(x)=x⁴-2x³+5x²-7x+9.

a. ± 1
b. ± 3
c. ± 9
d. ± 1/3
e. ± 1/9
f. ± 9/2