jjanee5 jjanee5

02-11-2017
Mathematics

contestada

how do I solve (7-6i)(-8+3i)?

Respuesta :

luziguzi1068 luziguzi1068

02-11-2017

i = {2.666666667, 1.166666667

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Аноним Аноним

02-11-2017

Solution step by step

(7-6i)(-8+3i)
=7×(-8)+7×3i-6i×(-8)-6i×3i
=-56+21i+48i+18i^2
=-56+69i-18×(-1)
=-56+69i+18
=-38+39i

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