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Year 8 maths · N.4 · Simplify expressions

Distributive property with positive numbers

Multiply the number outside the parentheses by every term inside. Write the answer as ax + b.

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  1. Expand: 3(3x + 1). Write your answer as ax + b.

    Answer: 9x + 3

  2. Expand: 5(2x + 7). Write your answer as ax + b.

    Answer: 10x + 35

  3. Expand: 4(x + 7). Write your answer as ax + b.

    Answer: 4x + 28

Tip: Multiply the number outside the parentheses by every term inside. Write the answer as ax + b.

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