Question

Given the following polynomial find P(2i)* P(x) = x3 – 2x2 + 5x – 3

Answer 1

$\begin{gathered} P(x)=x^3-2x^2+5x-3 \\ P(2i)=(2i)^3-2(2i)^2+5(2i)-3 \\ p(2i)=-8i+8+10i-3 \\ p(2i)=2i+5=5+2i \end{gathered}$