Question 145562
Perform the indicated operation:
{{{(4+3i)(-7+4i)}}} Use the FOIL method to multiply:
{{{(4+3i)(-7+4i) = -28+highlight(16i-21i)+12i^2}}} Combine like-terms and substitute{{{i^2 = -1}}}
{{{-28-5i+12(-1) = -40-5i}}} or {{{-(40+5i)}}}