I don't understand how to do long division. I'm really confused and haven't learned this yet. Please help! Please show work. Thank you!!
The key is to multiply n times something to "match" the first term(s)
n^3 - 7n^2 + 6n + 4
n + 1 [ n^4 - 6n^3 - n^2 + 10n + 6 ]
n^4 +1n^3
_______________________
-7n^3 - n^2
-7n^3 - 7n^2
_________________
6n^2 + 10n
6n^2 + 6n
____________
4n + 6
4n + 4
________
2
The answer is
n^3 - 7n^2 + 6n + 4 remainder 2 / ( x + 1)
Here's something that might help : https://www.purplemath.com/modules/polydiv2.htm