Garfield10 Garfield10

08-11-2016
Mathematics

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Write the product in standard form (9+5i)(9+8i)

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Pachanga Pachanga

08-11-2016

(9+5i)(9+8i)
81+72i+45i+40i^2 // i^2 is going to be always -1
81+72i+45i+40(-1)
81+72i+45i-40
41+117i

There you go!!!

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