Question

think now: 02.10. 2026
1 of 4
possible points: 0.25
add: $(5 - 6i) + (9 + 9i)$
○ $14 - 3i$
○ $14 + 3i$
○ $-14 - 3i$
○ $-4 + 15i$

Explanation:

Step1: Group real and imaginary parts

Group the real numbers and the imaginary numbers separately:
$(5 + 9) + (-6i + 9i)$

Step2: Simplify real and imaginary terms

Calculate the sum of real parts and imaginary parts respectively:
$14 + 3i$

Answer:

B. $14 + 3i$