What are the domain and range of the function f (x) = 1/4 (x^3 + 6x^2 + 5x-4)

The domain is the value of x which is the input value.

The input value can be any real number so the domain is negative infinity to infinity.

Because the j out can be any value, the output can also be any value, so the range would also be negative infinity to infinity.