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Multiplying polynomials

Grade 9

What this lesson shows

Multiply x plus 2… by x plus 3. Here's the picture that keeps it honest: a rectangle whose sides are exactly those lengths.

Try it yourself

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

  1. Expand (x + 1)(x + 2).
    Show answer
    x² + 3x + 2
  2. Expand (x + 3)(x + 1).
    Show answer
    x² + 4x + 3
  3. Expand (x + 2)(x + 2).
    Show answer
    x² + 4x + 4
  4. Expand (x + 1)(x + 3).
    Show answer
    x² + 4x + 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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