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February 27, 2015

February 27, 2015

Posted by **Christina** on Wednesday, January 5, 2011 at 9:38pm.

So would I do this:

(7-3i) (7-3i)

then distribute it .... OR

(7-3i)^2

square everything 49+9i^2

? thanks

- Math- Algebra II -
**Kay**, Wednesday, January 5, 2011 at 9:46pmFirst option is correct.

It is of the form

(a-b)^2 = a^2 - 2ab + b^2

- Math- Algebra II -
**Christina**, Wednesday, January 5, 2011 at 9:50pmthank you, okay I wasn't' sure

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