sidneybean2002 sidneybean2002

14-05-2020
Mathematics

contestada

Simplify the expression:
(7 +9i)(8 - 10i)

56 + 2i + 90
56 + 2i – 90i^2
97 + 72i
146 + 2i

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SalemRider SalemRider

14-05-2020

The answer is 146+2i

ur welcome

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