Question 1034573
You would first need to fix your character mistake to show PLUS or to show MINUS; and the likely wrong exponent; and then pick at each root shown in the graph until your quotient is able to be finished using factorization or quadratic formula.


x^4-3x^3-5x^2-21x+22
(the site is not showing this graph properly.)
{{{graph(400,400,-10,10,-10,10,x^4-3x^3-5x^2-21x+22)}}}



x^4+3x^3-5x^2-21x+22
(the graph will look much better when the function run through Google.)
{{{graph(400,400,-10,10,-10,10,x^4+3x^3-5x^2-21x+22)}}}
One might guess that this is the function you are given.  Try synthetic division to take care of binomial linear factors  x-1 and x-2.  You have a quadratic factor which will likely give you two complex roots.