- #1
Loonygirl
- 5
- 0
For each of the following polynomials, one zero is given. List all zeros of the polynomials.
1. P(x) = x^3 - 3x - 2, -1 is a zero
A. -1, -2
B. -1, 2
C. -1 of multiplicity 2, 2
D. -1, 1, 2
2. P(x) = x^3 - 6x^2 + 11x - 6 , 3 is a zero
A. 3, -2, -1
B. 3, 2 of multiplicity 2
C. 3, 1 of multiplicity 2
D. 3, 2, 1
3. P(x) = 6x^3 + 19x^2 + 2x - 3 , -3 is a zero
A. There are no additional zeros
B. -3, 3, 2
C. -3, -1/3, 1/2
D. -3, 1/3, -1/2
4. P(x) = x^4 + 2x^3 - 7x^2 - 20x - 12, -2 is a zero of multiplicity 2
A. -2 of multiplicity 2, -3, 1
B. -2 of multiplicity 2, 6, 1
C. -2 of multiplicity 2, -6, -1
D. -2 of multiplicity 2, 3, -1
5. P(x) = x^3 + x^2 - 4x - 24, -2+2i is a zero
A. -2 + 2i, -2 - 2i, -3
B. -2 + 2i, -2 - 2i
C. -2 + 2i, 2 - 2i, 3
D. -2 + 2i, -2 - 2i, 3
I kinda understand how to work out the problems. But 3, 4, & 5 are giving me problems. Help?
1. P(x) = x^3 - 3x - 2, -1 is a zero
A. -1, -2
B. -1, 2
C. -1 of multiplicity 2, 2
D. -1, 1, 2
2. P(x) = x^3 - 6x^2 + 11x - 6 , 3 is a zero
A. 3, -2, -1
B. 3, 2 of multiplicity 2
C. 3, 1 of multiplicity 2
D. 3, 2, 1
3. P(x) = 6x^3 + 19x^2 + 2x - 3 , -3 is a zero
A. There are no additional zeros
B. -3, 3, 2
C. -3, -1/3, 1/2
D. -3, 1/3, -1/2
4. P(x) = x^4 + 2x^3 - 7x^2 - 20x - 12, -2 is a zero of multiplicity 2
A. -2 of multiplicity 2, -3, 1
B. -2 of multiplicity 2, 6, 1
C. -2 of multiplicity 2, -6, -1
D. -2 of multiplicity 2, 3, -1
5. P(x) = x^3 + x^2 - 4x - 24, -2+2i is a zero
A. -2 + 2i, -2 - 2i, -3
B. -2 + 2i, -2 - 2i
C. -2 + 2i, 2 - 2i, 3
D. -2 + 2i, -2 - 2i, 3
I kinda understand how to work out the problems. But 3, 4, & 5 are giving me problems. Help?