Algebra 1 · Factoring

Factoring Trinomials

Algebra 1 · Factoring

Definition

Factoring trinomials is rewriting a trinomial as a product of two binomials.

Examples

  • x^2 + 5x + 6 = (x + 2)(x + 3).
  • x^2 - x - 6 = (x - 3)(x + 2).

Key rule

Find two numbers that multiply to the last term and add to the middle.

Memory hook

Find the pair that multiplies and adds just right.