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montoyas7940
Oct22-09, 05:40 PM
1. The problem statement, all variables and given/known data

Simplify \frac{-2\pm\sqrt{-56}}{30}

\frac{-2\pm 2i\sqrt{14}}{30}

\frac{-1\pm i\sqrt{14}}{15}

Is this correct?

Mark44
Oct22-09, 05:47 PM
Yes. I would write it with =, though.
\frac{-2\pm\sqrt{-56}}{30}~=~\frac{-2\pm 2i\sqrt{14}}{30}~=~\frac{-1\pm i\sqrt{14}}{15}

montoyas7940
Oct22-09, 05:55 PM
Thank you, I am very rusty...

Mark44
Oct23-09, 10:25 AM
Thank you, I am very rusty...
Well, it doesn't show. There was no problem with your work. I was just polishing it a bit.