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
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What did you try, and what did you get?
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