Write a polynomial function in standard form with real coefficients whose zeros include 3, 9i, and...

Question

Question

math algebra

Answer 1

Answer #1

roots are x= 3 , 9i , -9i

So, f(x) = (x-3)(x^2+ 81)

On simplfying

f(x) = x^3 + 81x - 3x^2 - 243

Answer 2

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