Question

think now: 02.10. 2026
possible points: 0.25
subtract: $(9 + 5i) - (-8 + i)$
○ $-17 - 4i$
○ $1 + 6i$
○ $17 + 4i$
○ $17 - 4i$

Explanation:

Step1: Distribute the negative sign

$(9 + 5i) + 8 - i$

Step2: Combine real parts

$9 + 8 = 17$

Step3: Combine imaginary parts

$5i - i = 4i$

Step4: Combine results

$17 + 4i$

Answer:

$\boldsymbol{17 + 4i}$ (Option C: $17 + 4i$)