How many rational roots does x4 + 3x3 + 3x2 + 3x + 2 = 0 have?

a. 0

b. 1

c. 2

d. 4

If you would like to know the number of rational roots of the equation x^4 + 3 * x^3 + 3 * x^2 + 3 * x + 2 = 0, you can find this using the following steps:

x^4 + 3 * x^3 + 3 * x^2 + 3 * x + 2 = 0

(x^2 + 1) * (x^2 + 3 * x + 2) = 0

(x^2 + 1) * (x + 1) * (x + 2) = 0

Complex solutions:

1. x = - i

2. x = i

Real solutions:

3. x = - 2

4. x = - 1

The correct result would be c. 2 rational roots.