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OpenStudy (anonymous):

(7+2i)+(1-4i)

OpenStudy (anonymous):

8-2i

OpenStudy (anonymous):

how did u work it out

OpenStudy (anonymous):

7+1+2i-4i = 8 - 2i

OpenStudy (anonymous):

thanks another one? 15i(12-11i)

OpenStudy (anonymous):

work it out please\

OpenStudy (anonymous):

180i-165i^2 180i-(165*-1) 180i+165 i^2=-1

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

5(36i+33)

OpenStudy (anonymous):

medal?

OpenStudy (anonymous):

wat?

OpenStudy (anonymous):

click good answer

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