Hi, Note highlighted for previous typo

Find a polynomial, step by step, having real coefficients, 

with the degree and zeroes indicated: 

degree 3, x = -5, x = -3i. The lead coefficient is 1.

Note:if a quadratic polynomial has complex roots, 

they will always be a complex conjugate pair! 

that is: root x = -3i will be accompanied by root x = 3i

 (x+3i)(x-3i) = x^2 + 9   |i^2 = -1

AND...

()(x^2 + 9) = x^3 + 5x^2 + 9x + 45 

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