SOLUTION: (2+3i)(2-3i)
Algebra.Com
Question 184325: (2+3i)(2-3i)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Remember the difference of two squares factorization?
(a - b))
So:
(2 - 3i) = 2^2 - (3i)^2 = 4 - (-9) = 13)
Note 
so ^2 = 9 \cdot (-1) = -9)
John
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