Answer:
210
x³ + 6x² - 4x + 41 - --------
x + 5
Explanation:
x⁴ + 11x³ +26x² 21x - 5; x + 5
x + 5 (change the sign!)
-5} 1 11 26 21 -5
↓ -5 -30 20 -205
-------------------------------------------
1 6 -4 41 -210
210
x³ + 6x² - 4x + 41 - --------
x + 5
I hope this helps!