x^2+4x-34 - 22/(x-3)
x-3 | x^3+x^2-46x+80
x^3 -3x^2
_______________
4x^2-46x
4x^2-12x
_____________
-34x+80
-34x+102
__________
(remainder) -22
Basically with remainder -22/(x-3) then p(3) will equal -22
See cphill's explanation/answer here for the second part:
https://web2.0calc.com/questions/what-does-this-mean_10