Polynomial Division Calculator
Perform polynomial long division or synthetic division instantly — with a step-by-step breakdown and an interactive graph.
Polynomial Division
Supported: x^3 - 2x^2 + x + 5 | 3x^2 + x - 1 | x^4 - 1
Result
Division Equation
Visualize the dividend f(x), divisor g(x), and quotient q(x) on the same axes.
Hover or tap on the graph to read x/y values
What is Polynomial Division?
Polynomial division is the process of dividing one polynomial (dividend) by another (divisor) — similar to long division of integers. The result is a quotient and a remainder.
The Division Algorithm
Where f(x) is the dividend, g(x) is the divisor, q(x) is the quotient, and r(x) is the remainder with degree less than g(x).
Long Division vs. Synthetic Division
- Long Division — works for any divisor of any degree.
- Synthetic Division — a shortcut that only works when the divisor is linear: (x − r).
Remainder Theorem
When a polynomial f(x) is divided by (x − r), the remainder equals f(r). This calculator verifies this automatically.