<PRE><B>Question 730030</B>


{{{(2+ 3i)(5-3i)(-7+ i)}}}

{{{(2*5-2*3i+ 3i*5-3i*3i)(-7+ i)}}}

{{{(10-6i+ 15i-9i^2)(-7+ i)}}}

{{{(10+9i-9(-1))(-7+ i)}}}

{{{(10+9i+9)(-7+ i)}}}

{{{(19+9i)(-7+ i)}}}

{{{19(-7)+19*i+9i(-7)+ 9*i*i}}}

{{{-133+19i-63i+ 9i^2}}}

{{{-133-44i+ 9(-1)}}}

{{{-133-44i-9}}}

{{{-142-44i}}}


</PRE>