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14-10-2020
Mathematics

contestada

(-3√ -81)(-5+√ -9)+9i

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chinguunbb2018 chinguunbb2018

14-10-2020

Answer:

144i + 81

Step-by-step explanation:

(-3*9i)(-5 + 3i) + 9i

-27i (-5 + 3i) + 9i

FOIL

135i + 81 + 9i

144i + 81

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