Write a polynomial of least degree with roots 5 and -1 - 3i
A) f(x)=x^3-3x^2+5x-50
B) f(x)= x^3 -3x^2+7x-50
C) f(x)= x^3-3x^2-50
D) f(x) = x^3-7x^2-50
IF it has a root -1 -3i it ALSO has a root -1+3i
so if you multiply
(x-5)(x+1+3i)(x+1-3i) all out
you will get
x^3-3x^2-50 "C"