Find the sum or difference. Write the answer in standard form.
-$$( 2 - 9 \mathrm { i } ) - ( - 1 - 2 \mathrm { i } ) - ( - 2 - 3 \mathrm { i } )$$
A) $5 - 14 \mathrm { i }$
B) $1 - 10 \mathrm { i }$
C) $- 1 - 14 \mathrm { i }$
D) $5 - 4 \mathrm { i }$

Question

Quizplus · Accepted Answer

To find the sum or difference, combine like terms: $$(2 - 9i) - (-1 - 2i) - (-2 - 3i) = 2 - 9i + 1 + 2i + 2 + 3i = 5 - 4i.$$

Find the Sum or Difference (2−9i)−(−1−2i)−(−2−3i)( 2 - 9 \mathrm { i } ) - ( - 1 - 2 \mathrm { i } ) - ( - 2 - 3 \mathrm { i } )(2−9i)−(−1−2i)−(−2−3i)

Find the Sum or Difference $( 2 - 9 \mathrm { i } ) - ( - 1 - 2 \mathrm { i } ) - ( - 2 - 3 \mathrm { i } )$