Perform the indicated operation. Write the result in the form a + bi.
-$$( 6 + 3 i ) - ( - 4 + i )$$
A) $- 10 - 2 \mathrm { i }$
B) $10 + 2 \mathrm { i }$
C) $10 - 2 \mathrm { i }$
D) $2 + 4 i$

Question

Quizplus · Accepted Answer

To perform the operation, distribute the negative sign in the second set of parentheses: $(6 + 3i) - (-4 + i) = 6 + 3i + 4 - i$. Combine like terms: $6 + 4 = 10$ and $3i - i = 2i$. The result is $10 + 2i$.

Perform the Indicated Operation (6+3i)−(−4+i)( 6 + 3 i ) - ( - 4 + i )(6+3i)−(−4+i)

Perform the Indicated Operation $( 6 + 3 i ) - ( - 4 + i )$