exam Maths Puzzle Numerical Ability

Polynomial function:
a. List all possible zeros
b. find all rational zeros
c. list all factors!

f(x) = x^3 + 5x^2 + 2x -8

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exam Other Question

Can you please help me by showing me how to simplify this.

((3x^a y^b)^3/ (-3x^a y^b)^2 )^2

I am not sure if I am writing this properly. The problem is written as a fraction and the entire problem is squared.
5-3 on the outside of an absolute value bars with this euation inside the bars
-8-6. Looks like this 5-3|-8-6| I tried to do the inside firstand got -14 but when I got the outsid