Answer:
x can be three things: 5, 1, -1
Explanation:
dividend x4 - 4x3 - 6x2 + 4x + 5
- divisor * x3 x4 - 5x3
remainder x3 - 6x2 + 4x + 5
- divisor * x2 x3 - 5x2
remainder - x2 + 4x + 5
- divisor * -x1 - x2 + 5x
remainder - x + 5
- divisor * -x0 - x + 5
remainder 0
Quotient : x3+x2-x-1 Remainder: 0