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OpenStudy (anonymous):
(8-3i)(6+i)
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OpenStudy (anonymous):
51-10i
OpenStudy (anonymous):
Yeah but how does -3i^2 become just 3
OpenStudy (anonymous):
You just multiply the two
OpenStudy (nikato):
|dw:1389932328840:dw|
OpenStudy (anonymous):
exactly
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OpenStudy (anonymous):
okay, but how does i^2 =-1 I'm not trying to be difficult I just don't understand how it becomes -1
OpenStudy (anonymous):
It just does, it a law in math
OpenStudy (nikato):
|dw:1389932557061:dw|
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