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December 19, 2014

December 19, 2014

Posted by **James** on Monday, June 15, 2009 at 10:03pm.

3-i

Simplify: (5-3i)^2

16+30i

Simplify (3+2i) / (4-5i)

(2/41)-(23/41)i

is this right?

- Pre Calculus -
**Reiny**, Monday, June 15, 2009 at 10:50pmthe second one should be

(5-3i)^2

= 25 - 30i + 9i^2

= 16 - 30i

the other two are correct

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