+0  
 
+1
43
1
avatar+300 

Express $(4-5i)(-5+5i)$ in the form $a+bi$, where $a$ and $b$ are integers and $i^2 = -1.$

 Feb 21, 2021
 #1
avatar+939 
0

\((4-5i)(-5+5i) = -20-25i+20i - 25i^2 = \boxed{5 - 5i}\)

.
 Feb 21, 2021

9 Online Users

avatar