Question 65520
solution   
    x-1|x^4 - 2             |x^3 + x^2 + x^1 + 1
        x^4 - x^3
   do subtraction
       (changing the sign)
       ____________ 
            x^3   -2
            x^3 - x^2
 do subtraction 
         (changing the sign)
           ____________ 
              x^2  -2
              x^2  -x
do subtraction
             (changing the sign)
                  ____________ 
                  x -2
                  x -1
                     do subtraction
       (changing the sign)
                 ____________ 
                   -1
  so the quotient  is x^3 +x^2+x+1  and remainder is -1