You can
put this solution on YOUR website!Multiply numerator and denominator by the conjugate of the denominator--that is, the same as the denominator but with the opposite sign in the middle. We do that because it causes the i term to subtract out of the denominator.
Remember that

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P.S. A TI 83, TI 84, or TI 86 can do this in a heartbeat!!
R^2 at SCC