Writing Polynomial Equations given the Zeros of the Functions

p. 356#13,14

[Stars]

You should seriously be my teacher >..> Just saying, but thanks! 

[MrsKKitchen]

Imaginary roots come in pairs so 4 - i would also be a zero. Let x = 4 + the factor is (x - 4 - i). Do the same with the 4 - i and then multiply these two factors out. The i's will cancel out in the distribution process. Hope this helps.

[kingkia]

wow this was so helpful thank you very much!

[Lindz]

Thank you so much, I forgot about the irrational conjugates theorem and this really helped me!

[ZTSIR]

what if im asked to write the polynomial function, given the zeros, in standard form AND with a leading coefficient of 2?

[xyouarebeautyx]

are you using a leading coefficeant of 1