Expanding Triple Brackets

Sample Expanding Triple Brackets questions

A few of the 49 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 13 marksGrade 6
   Expand and simplify $(x - 4)(2x + 3y)^2$.
   Show the worked solution

   (2x + 3y)² = (2x + 3y)(2x + 3y) = 4x² + 6xy + 6xy + 9y² = 4x² + 12xy + 9y². M1

What are the common mistakes in Expanding Triple Brackets?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Multiplies out two brackets but doesn't go on to complete the remaining step(s)

  Correctly expanded two of the three brackets into a quadratic but forgot to multiply the result by the third bracket, leaving a quadratic instead of a cubic

• Makes an arithmetic error when collecting the x^2 terms together

  Made an arithmetic slip combining the constants when collecting the x^2 coefficient

• Omits the middle term when multiplying out brackets in a final step

  When multiplying the quadratic by the third bracket, forgot to distribute the third bracket over the quadratic's middle (x) term, dropping two of the six required product terms

Quick answers about Expanding Triple Brackets

How many Expanding Triple Brackets practice questions are there?

There are 49 self-marking GCSE and IGCSE Maths questions on Expanding Triple Brackets, written for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Higher and Extended tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Expanding Triple Brackets?

No. You can start practising Expanding Triple Brackets straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.