Question

For each equation, state the number of complex roots, the possible number of real roots, and the possible rational roots.

x^7 - 2x^5 - 4x^3 - 2x - 1 = 0

Answer 1

Number of complex roots: 7
Possible number of real roots: 0
Possible rational roots: -1, 1, -2, 2, -4, 4