Question

List the possible rational roots for the equation:

x3 + x2 - 4x + 4 = 0


{±1, ±2, ±4} No answer is correct.
{1, 2, 4} {±1, -2}

2. List the possible rational roots for the equation:

x4 + 3x3 - x2 - 9x - 6 = 0


-2, -1, ±Ö 3
{1, 2, 3, 6}
No answer is correct. {±1, ± 2, ± 3, ± 6}

3. List the possible rational roots for the equation:

x4 + 3x2 - 8x + 10 = 0


{±1, 5, 10} {±1, ± 2, ± 5, ± 10}
{1, 2, 5, 10} No answer is correct.

4. List the possible rational roots for the equation:

2x3 - 5x2 - 11x - 4 = 0


{-1, -0.5, 4} No answer is correct.
{±