Question 539322
When dividing the two complex numbers 5+8i
                                      ----
                                      1+2i
then the first step is?

I said 5+8i      1-2i
      ------ *   ----
       1+2i      1-2i
-----------------
That's correct.
Multiply NUM and DEN by the conjugate of the DEN.
= {{{(5+8i)*(1-2i)/((1+2i)*(1-2i))}}}