Question 1024650
You can use ^ for exponentiation, e.g.


f(x) = x^3 - x^2 - 2x - 5


Since f(x) can be written in the form (x+5)Q(x) + R for some constant R, the remainder can be computed by simply computing f(-5) (so that the equation becomes f(-5) = R). To compute f(-5), simply replace all x's with -5 and simplify.