SOLUTION: Find a polynomial function with a degree of 4 that has the given zeros: 3, 0, 2i

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Question 593537: Find a polynomial function with a degree of 4 that has the given zeros: 3, 0, 2i
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find a polynomial function with a degree of 4 that has the given zeros: 3, 0, 2i
note: I believe you are missing one zero, that is -2i. Non-real roots always come in pairs
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f(x)=x(x-3)(x^2+4)
f(x)=(x^2-3x)(x^2+4)
FOIL
f(x)=x^4-3x^3+4x^2-12x