Adding and Subtracting Polynomials Calculator

Add or subtract two polynomials of any degree, combining like terms automatically with the resulting degree and term count.

Frequently Asked Questions

What if A has higher degree than B?

Pad B's coefficient list with leading zeros to match A. The higher-degree terms of A pass through unchanged.

Can I get a result with lower degree than both?

Yes - if the leading terms of A and B cancel. For example, (x^2 + 1) - (x^2) = 1, a degree-0 polynomial.

Does this work with multivariate polynomials?

Not in this calculator. It is single-variable. For multivariate work you need to enter each variable's coefficient list separately or use a CAS.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.