Question

What is the simplified version written in standard form, a + bi, where a and b are real numbers?

Answer 1

The expression is,

$3i(-1+2i)$

Evaluate the complex expression after multiplication of two terms.

$\begin{gathered} 3i(-1+2i)=-1\cdot3i+3i\cdot2i \\ =-3i+6i^2 \\ =-3i+6\cdot(-1) \\ =-6-3i \end{gathered}$

So answer is -6 - 3i.