Emma H.

asked • 12/11/15

Find the nth degree polynomial with real coefficients satisfying the given conditions

Find the nth degree polynomial with real coefficients satisfying the given conditions.
n=3
f(-1)=80
zeros are 3 and 3i

The expanded and simplified polynomial is f(x)=______________
 
*****Got the answer 2x3 - 6x+ 18x - 54 multiple times and it is not correct!

Mark M.

If I had gotten the same function several times, which I have, I would consider that your homework page is incorrect.
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12/11/15

2 Answers By Expert Tutors

By:

Derek F. answered • 12/11/15

Tutor
4.9 (8)

An excellent tutor must be clear, concise and patient.

Mark M.

The third root is the conjugate of 3i, -3i. Complex numbers always appear in conjugate pairs!!!!!
The function you present has imaginary coefficients. It does not have real coefficients as required in the problem.
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12/11/15

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