The Remainder and Factor Theorems

Evaluate a polynomial P(x) at a given value and use the remainder theorem to state the remainder when P(x) is divided by a linear factor (x-a), without performing full division.

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Te reo Māori terms

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Learning objective overview

Master Teaching Guide coverage for this objective.

Current NZC (2007)
  • No direct alignment recorded
New NZC (2026)
  • NZC26-P4-ALG-ER-P-Y10-03

Resources

Terminology

  • Polynomial
  • Degree
  • Coefficient
  • Remainder theorem
  • Factor theorem
  • Linear factor
  • Synthetic division
  • Polynomial long division
  • Root

Task goals

  • Foundation: Evaluate a polynomial P(x) at a given value and use the remainder theorem to state the remainder when P(x) is divided by a linear factor (x-a), without performing full division.
  • Proficient: Apply the factor theorem to test whether a given linear expression is a factor of a cubic polynomial, then use polynomial long division (or synthetic division) to fully factorise the polynomial into linear factors.
  • Excellence: Solve cubic (or higher-degree) polynomial equations by combining the factor theorem with algebraic techniques, including problems with an unknown coefficient that must be found using a given factor or remainder condition.

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What leads into this objective, and where it goes next.

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The Remainder and Factor Theorems

The Remainder and Factor Theorems

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