SOLUTION: (8+3i)^2 (8+3i) (8+3i) when I first tried this I got 64-24i-24i-9i I have the answer 55-48i, I just don't understand how to get there.

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: (8+3i)^2 (8+3i) (8+3i) when I first tried this I got 64-24i-24i-9i I have the answer 55-48i, I just don't understand how to get there.      Log On


   

Question 1097245: (8+3i)^2
(8+3i) (8+3i)
when I first tried this I got 64-24i-24i-9i

I have the answer 55-48i, I just don't understand how to get there.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+%28+8+%2B+3i+%29%5E2+
+64+%2B+24i+%2B+24i+%2B+9i%5E2+
+64+%2B+48i+%2B+9%2A%28-1%29+
+55+%2B+48i+
I don't see how they got +55+-+48i+