Hello, aikenfan!

1. Use the Rational Zero Test to determine all possible rational zeros

of the function and then find all the actual zeros of: .

For this problem, the only rational zeros are factors of 18: .

We're in luck . . . The first one works!

. .

Hence, is a factor of

We find that: .

. . Therefore, the zeroes are: .

2. Find all the solutions to: .

Factor: .

Therefore, the solutions are: .