Final answer:
The expression provided does not allow us to determine if there are any repeated values in the list.
Step-by-step explanation:
The given expression is g(x) = -2 + 8x^3 + 3x^2 + 8x^4 + 6x. To determine if there are any repeated values in the list, we need to find all the possible x-values that make the expression equal to a specific number. We can set the expression equal to zero and solve for x. However, since there is only one equation and five variables, it is not possible to solve for exact values of x. Therefore, we cannot determine if there are any repeated values in the list.