SOLUTION: I am trying to figure out the following Alegbra II equation: 5i.8i = ?

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Question 708102: I am trying to figure out the following
Alegbra II equation:
5i.8i = ?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

5i%2A8i+=5%2A8%2Ai%2Ai=40i%5E2=40%28-1%29=-40......recall that i%5E2=-1