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Mathematics 14 Online
OpenStudy (anonymous):

Simplify the given expression. (1 + 2i) • (5 − 3i)

OpenStudy (anonymous):

Basically need a guide to figuring these out :3

OpenStudy (anonymous):

FOIL!

OpenStudy (anonymous):

@Luigi0210

OpenStudy (luigi0210):

Use FOIL

OpenStudy (anonymous):

What does that mean? ;_;

OpenStudy (luigi0210):

Also: \[i^2=-1\]

OpenStudy (anonymous):

Every response you put is slightly confusing me more. lol

OpenStudy (luigi0210):

|dw:1381161358171:dw|

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