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Leno4ka [110]
2 years ago
8

What is the answer to (3-4i)(5+6i)

Mathematics
2 answers:
densk [106]2 years ago
4 0

Answer:

39 - 2i

Step-by-step explanation:

First, you need to FOIL the equation:

(3 - 4i)(5 + 6i) \\15 + 18i - 20i - 24i^2\\15 - 2i - 24(-1)\\15 - 2i + 24\\39 - 2i\\

Remember that i^2 equals -1.

Therefore, the answer to this question is 39 - 2i

<em>I hope this helps!!</em>

<em>- Kay :)</em>

gulaghasi [49]2 years ago
3 0
(3-4i)(5+6i)

15+18i-20i-24i^2

15+18i-20i+24=

39-2i
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