Question 536242
Short Answer: Simplify the following expression; express in terms of i. 
&#8730;(-9)=&#8730;9*&#8730;-1=3i
Simplify the following expression. 
&#8730;(-24).&#8730;(-81)=&#8730;24*&#8730;-1*&#8730;81*&#8730;-1
&#8730;24=2&#8730;6
&#8730;81=9
&#8730;-1*&#8730;-1=i^2=-1
&#8730;(-24).&#8730;(-81)=-1*9*2&#8730;6=-18&#8730;6