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NISA [10]
3 years ago
10

-2i (9 − 3i) − (6 − 10i) as a complex number in standard form.

Mathematics
1 answer:
elixir [45]3 years ago
8 0
The form is
a+bi
a is the real partt
bi is the imaginary part

add complex parts with complex and real with real

treat 'i' as x
remember, i=√-1 so i^2=-1

-2i(9-3i)-1(6-10i)
distribute
-18i+6i^2-6+10i
-18i-6-6+10i
-18i+10i-6-6
-8i-12
-12-8i

answer is -12-8i
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Explanation:

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Land is required to set up the ground where desired operations can be done which will result in goods. For providing a service also, we need land were one is supposed to set up the unit with all things required to give a service.

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Capital, no doubt most important, is the money. For supporting any job, there is need to money. There should be enough capital to support the financial budget required to get a job done.

7 0
4 years ago
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3 0
4 years ago
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polet [3.4K]

Answer:

Step-by-step explanation:

\frac{2}{x}+\frac{3}{2x}-\frac{1}{2}=\frac{2}{3}\\multiply ~by~6x\\12+9-3x=4x\\21=4x+3x\\7x=21\\x=21/7=3

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