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21 January, 21:59

Simplify the expression. (3 i) - (2 - 2i)

a. 1 3i

b. 5 - i

c. 4i

d. - 1 - 3i

+1
Answers (1)
  1. 21 January, 23:45
    0
    Just treat 'i' as a placeholder (I know that it represents √-1, but just add 'i' as if it were a placeholder becaseu that is what it is.)

    (3+i) - (2-2i)

    distribute

    3+i-2+2i

    group

    3-2+i+2i=

    1+3i

    answer is A
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