SOLUTION: i have tried these so many times and I just cannot get them please help! 9. Find f(�2) for f(x) = �x3 � 2x2 + 7x + 1. 1. �1 2. �6 3. �13 4. �29 10. Identify the factors

Question 319363: i have tried these so many times and I just cannot get them please help!
9. Find f(�2) for f(x) = �x3 � 2x2 + 7x + 1.
1. �1
2. �6
3. �13
4. �29
10. Identify the factors of the polynomial x3 + x2 � 14x � 24.
1. (x � 2)(x + 2)(x + 6)
2. (x + 2)(x + 3)(x � 4)
3. (x + 1)(x � 3)(x + 8)
4. (x � 1)(x + 4)(x + 6)
11. Identify all rational zeros of the polynomial function f(x) = x3 + 2x2 � 5x � 6.
1. �1, 2, �3
2. �1, �2, 3
3. 1, �2, �3
4. 1, 2, 3
12. Identify all zeros of the polynomial function f(x) = x4 � 9x3 + 24x2 � 6x � 40.
1. �2, 4, 1 � i, 1 + i
2. �2, 4, 2 � i, 2 + i
3. �1, 4, 2 � i, 2 + i
4. �1, 4, 3 � i, 3 + i
13. Find f(g(�2)) if f(x) = 4x + 5 and g(x) = x2 � 1.
1. 8
2. 17
3. 12
4. 21

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
i have tried these so many times and I just cannot get them please help!
9. Find f(�2) for f(x) = �x3 � 2x2 + 7x + 1.
1. �1
2. �6
3. �13
4. �29
-------------
What did you try, and what did you get?

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