1. which expression is a cubic polynomial?
3x^2 - 1
x^3 - 1
x^2 - x + 3
3x^2 - x + 3

2.which of the following binomials is a factor of x^3 + 4x^2 +x - 6?

3. if a polynomial equation p(x) = 0 has 3 + 4i as a solution, what other solutions must it have?

1. A cubic polynomial is a polynomial of degree 3 (the degree of a polynomial is the highest degree among al terms), then the cubic polynomial is .

2. The polynomial has root x=1, then .

3. If a polynomial equation p(x) = 0 has 3 + 4i as a solution and has real coefficients, then 3-4i is also a solution.