SOLUTION: n=3; 3 and 4 i are zeros; f(2)=20

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Question 1134864: n=3;
3 and 4 i are zeros;
f(2)=20
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
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n=3;
3 and 4 i are zeros;
f(2)=20
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a%28x-3%29%28x-4i%29%28x%2B4i%29=20
-
a%28x-3%29%28x%5E2%2B16%29=20
a%282-3%29%282%5E2%2B16%29=20
a%28-1%29%2820%29=20
a=-1
---
highlight%28f%28x%29=-%28x-3%29%28x%5E2%2B16%29%29