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14 votes
14 votes
Simplify the following expression:

(3i + 4) - i + 4(6 + 2i)

A. 27 + 11i

B. 28 + 10i

C. 14 + 8i

D. 14 + 4i

Simplify the following expression: (3i + 4) - i + 4(6 + 2i) A. 27 + 11i B. 28 + 10i-example-1
User Rrhrg
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1 Answer

10 votes
10 votes

The simplified form of this expression is 28 + 10i

This question is an expression of imaginary numbers

Imaginary numbers are numbers that are composed of a real number and an imaginary part.

< To resolve this issue, let's remove the first parenthesis:

(3i + 4) - i + 4(6 + 2i)

3i + 4 - i + 4(6 + 2i)

< In the second parentheses, let's apply the distributive property:

3i + 4 - i + 4(6 + 2i)

3i + 4 - i + 4 . 6 + 4 . 2i

3i + 4 - i + 24 + 8i

< Finally, let's just sum the like terms, along with the real terms:

3i + 4 - i + 24 + 8i

10i + 4 + 24

10i + 28

28 + 10i

Therefore, the correct value will be 28 + 10i

User Davechilders
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