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OpenStudy (anonymous):
(11-i)(7-15i)
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OpenStudy (anonymous):
Foil?
OpenStudy (anonymous):
77+165i-7i+15i^2 (add like terms) 15i^2+158i+77
OpenStudy (anonymous):
so my answer should be like 62-158i R^2
OpenStudy (anonymous):
15i^2+158i+77 is the answer, you just had to foil the 2 out then simplify them
OpenStudy (anonymous):
thank you
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