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July 5, 2015

Homework Help: Algebra2

Posted by Sara on Thursday, August 16, 2012 at 10:48am.

Check Answers Please?
1. 5+(2+3i) + (-3-7i)
= 4 + -4i

2. (5-10i) - (2+i)
= 7 - 9i

3. -5i(2-3i)
= -10i - 15

4. (2+3i)(-3-7i)
= (1)(4i)

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