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September 23, 2014

September 23, 2014

Posted by **Anon** on Friday, May 24, 2013 at 5:49am.

- Math -
**Reiny**, Friday, May 24, 2013 at 8:05amany complex roots come in conjugate pairs

so if 4i is a root, so is -4i

those two roots would come from (x^2 + 16 ) = 0

so the polynomial would be

a(x+1)(x^2 + 16)

= a(x^3 + x^2 + 16x + 16)

if we assume a = 1

a possible polynomial would be

x^3 + x^2 + 16x + 16

(or any multiple of that)

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