The general term of a binomial expansion

Sample The general term of a binomial expansion questions

A few of the 4 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 12 marksGrade 8
   Find the coefficient of $x^3$ in the expansion of $(1+2x)^7$. [2]
   Show the worked solution

What are the common mistakes in The general term of a binomial expansion?

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.

• Loses a negative sign that should result from raising a negative term to an odd power within a binomial expansion

  $(-3)^3=-27$ is negative (an odd power of a negative number) - the 4th term's coefficient is $^8C_3\times(-27)=56\times(-27)=-1512$

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There are 4 self-marking Additional Maths Maths questions on The general term of a binomial expansion, written for Cambridge IGCSE Additional Maths (0606) across Single tier. Each one is marked instantly and has a full worked solution.

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