SOLUTION: (4+3i)(2+5i) (2+4i)(9+7i) 2(-4- i)

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Question 737678: (4+3i)(2+5i)
(2+4i)(9+7i)
2(-4- i)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
( 4 + 3 i)( 3 + 2 i)

( 4 )( 3 + 2 I) + 3 i( 4 + 3 i)

12 + 8 i + 12 i + 9 i^2

12 + 20 i + 9 * -1

12 + 20 i -9

3 + 20 i