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Leno4ka [110]
3 years ago
8

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

Mathematics
2 answers:
densk [106]3 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]3 years ago
3 0
(3-4i)(5+6i)

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

15+18i-20i+24=

39-2i
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Step-by-step explanation:

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2 years ago
The solution system to 3y-2x=-9 and y=-2x+5
Alecsey [184]

Answer:

\boxed{(3,-1)}

Step-by-step explanation:

<em>Hey there!</em>

<em />

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3 years ago
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Answer:

15.

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