Algebra & Equations

Remainder Theorem

Remainder of p(x) divided by (x − r) equals p(r).

Formula

Formula
remainder = p(r)

Variables

SymbolDefinitionType & rangeUnitsRole
cₖ polynomial coefficients list of real numbers input
r divisor root real number (ℝ) input

Try it yourself

Interactive calculator
comma or space separated numbers
Result

Worked examples

Example 1
Givencoefficients = 1, -2, 0, 4, r = 2
Result4
Example 2
Givencoefficients = 1, 0, -9, r = 3
Result0