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OpenStudy (anonymous):
Simplify the given expression: (1 + 2i) • (5 − 3i) 2 −15i 3 + 2i 5 −6i 11 +7i
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OpenStudy (one098):
18i ??
OpenStudy (anonymous):
\[\left( a+bi \right) \cdot \left( c+di \right)=\left( ac-bd \right)+\left( ad+bc \right)i\]
OpenStudy (anonymous):
11+ 7i?
OpenStudy (anonymous):
that's what i get
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