Question #004e6

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Question #004e6

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Answer 1 · 2018-01-10T02:38:09

$10 - 5 i$ $10-5i$

Explanation:

The first step would be to distribute the negative outside of the parenthesis into the $- 8$ $-8$ and $3 i$ $3i$ . When you distribute the negative you should get this expression

$- 2 i + 8 - 3 i + 2$ $-2i+8-3i+2$

Then it's just a matter of combining like terms. So you would combine the $- 2 i$ $-2i$ and the $- 3 i$ $-3i$ and the $8$ $8$ and $2$ $2$ . Making the answer come out to be $10 - 5 i$ $10-5i$ .

The ten will go first because it is a real number. The $- 5 i$ $-5i$ will go second as the imaginary unit $i$ $i$ is not real.

Answer 2 · 2018-01-10T11:58:15

$10 - 5 i$ $10-5i$

Explanation:

$distribute brackets and collect like terms$ $"distribute brackets and collect like terms"$

$\Rightarrow - 2 i + 8 - 3 i + 2$ $rArrcolor(red)(-2i)color(blue)(+8)color(red)(-3i)color(blue)(+2)$

$= 10 - 5 i \leftarrow in standard form$ $=10-5ilarrcolor(blue)"in standard form"$

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Question #004e6

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