Question

Use the Rational Root Theorem to list all possible rational roots of the polynomial equation x^3-x^2-x-3=0. Do not find the actual roots.
a)-3,-1,1,3
b)1,3
c)-33
d)no roots

Answer 1

Find the roots of the polynomial equation
2x^3+2x^2-19x+20=0
a)3+i/2, 3-i/2, -4
b)-3+2i/2, -3-2i/2, 4
c)-3+i/2, -3-i/2, -4
d)3+2i/2, 3-2i/2, 4

Answer 2

a cubic polynomial with rational coefficients has the roots 6+sqr root of 6 and 2/3. Find one additional root.
a)-6-sqr6
b)6+sqr6
c)-6+sqr6
d)6-sqr6