+0  
 
0
7
2
avatar+936 

Help me!

 

Simplify (1-3i)(2-i)(2+i-7+5i)(1+3i-2+4i).

 Dec 15, 2023
 #1
avatar+126978 
+1

 (1-3i)(2-i)(2+i-7+5i)(1+3i-2+4i)

 

(1 -3i) (2-i) (-5 + 6i) (-1 + 7i)

 

[ 2 - 6i -i +3i^2 ] [ 5 - 6i  -35i + 42i^2]

 

[ -1 - 7i ] [ -37 - 41i]  =

 

[ 37 + 259i + 41ii + 287i^2]  =

 

[ 37 + 300i - 287 ]  =

 

[ -250 + 300i]

 

cool cool cool

 Dec 15, 2023

2 Online Users

avatar