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Factor trinomials (a ≠ 1)

Grade 9-10

What this lesson shows

Factor 2 x squared, plus 7 x, plus 6. The old method was: find two numbers that multiply to the last one and add to the middle one. Try it here and it fails — because there is a 2 in front now.

Try it yourself

Real questions from this lesson's worksheets — answers below each one.

  1. Factor 2x² + 3x + 1.
    Show answer
    (2x + 1)(x + 1)
  2. Factor 2x² + 5x + 2.
    Show answer
    (2x + 1)(x + 2)
  3. Factor 2x² + 5x + 3.
    Show answer
    (2x + 3)(x + 1)
  4. Factor 2x² + 7x + 3.
    Show answer
    (2x + 1)(x + 3)

Practise this every day

Eduyro gives your child a short daily worksheet on exactly this skill, and moves them on only once they have it. Watch the lesson, then build the fluency.

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