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OpenStudy (anonymous):
Multiply (9 - 4i)(2 + 5i) Wouldn't the answer be 18 - 2i? Or am I way off.
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OpenStudy (anonymous):
Oops i mean 18 - 20i
OpenStudy (precal):
you are way off, it is 38+37i, did you use foil?
OpenStudy (precal):
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