Question

can some one cheack my ansers
i think its abadc
Use the Rational Root Theorem to list all possible rational roots of the polynomial equation x3 – x2 – x – 3 = 0. Do not find the actual roots. (1 point)
–3, –1, 1, 3
1, 3
–33
no roots
2. Find the roots of the polynomial equation.

2x3 + 2x2 – 19x + 20 = 0 (1 point)
, , –4
, , 4
, , –4
, , 4
3. A cubic polynomial with rational coefficients has the roots 6 +and . Find one additional root. (1 point)
–6 –
6 +
–6 +
6 –
4. Find a third-degree polynomial equation with rational coefficients that has roots –4 and 6 + i. (1 p