SOLUTION: please help me simplify ( 2+3i ) ( 2 - 3i )

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Question 92072This question is from textbook
: please help me simplify ( 2+3i ) ( 2 - 3i ) This question is from textbook

Found 2 solutions by Nate, funmath:
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
( 2 + 3i ) ( 2 - 3i )
4 + 6i - 6i - 9i^2
4 - 9(-1)
4 + 9
13

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
simplify ( 2+3i ) ( 2 - 3i )
FOIL
2%282%29%2B2%28-3i%29%2B3i%282%29%2B3i%28-3i%29
4-6i%2B6i-9i%5E2
4-9i%5E2 i^2=-1
4-9%28-1%29
4%2B9
highlight%2813%29
Happy Calculating!!!