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September 21, 2014

September 21, 2014

Posted by **melba** on Monday, March 5, 2012 at 10:35am.

- algebra2 -
**MathMate**, Monday, March 5, 2012 at 5:20pmWhen there is a division (denominator), multiply top and bottom by the conjugate of the denominator.

-9+8i

-----

1+2i

(-9+8i)(1-2i)

=---------------

(1+2i)(1-2i)

(-9+16+8i+18i)

=----------------

(1+4-2i+2i)

(7+26i)

=---------

(5)

=7/5 + (26/5)i

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