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OpenStudy (anonymous):
multiply (8-3i) (6+5i)
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OpenStudy (anonymous):
So the first thing you want to do is is get the i's together and the regular numbers together! How would you do that?
OpenStudy (anonymous):
\[ (a-bi) (c+di) \] \[(ac+bd) +i(ad-bc)\] Follow this rule and you will get the answer - just group real and imaginary numbers
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