SOLUTION: please help me solve this.
I don't know how to start.
(3+10i)^2
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Question 182634: please help me solve this.
I don't know how to start.
(3+10i)^2
Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression.
Expand. Remember, something like
FOIL.
Multiply.
Replace with . Note: .
Multiply.
Combine like terms.
So .
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
please help me solve this.
I don't know how to start.
(3+10i)^2
---------------
There's nothing to solve for. This can be expanded, tho
(3+10i)^2 = (3+10i)*(3+10i)
= 3*(3+10i) + 10i*(3+10i)
= 9+30i + 30i -100
= -91 + 60i Bigger numbers, but it is simpler.
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