Question 2 - A-Level Maths

AQA Paper 2 2018 June — Question 2 1 marks

Exam Board	AQA
Module	Paper 2 (Paper 2)
Year	2018
Session	June
Marks	1
Paper	Download PDF ↗
Mark scheme	Download PDF ↗
Topic	Binomial Theorem (positive integer n)
Type	Standard binomial expansion coefficient
Difficulty	Easy -1.8 This is a straightforward application of the binomial theorem requiring only substitution into the formula C(7,2)×(2x)² = 21×4 = 84. It's a single-step recall question with multiple choice format, making it significantly easier than average A-level questions.
Spec	1.04a Binomial expansion: (a+b)^n for positive integer n

Find the coefficient of \(x^2\) in the expansion of \((1 + 2x)^7\) Circle your answer. [1 mark] 42 4 21 84

Show mark scheme Show mark scheme source

Question 2:

Answer	Marks	Guidance
2	Circles correct answer	AO1.1b
Total	1
Q	Marking Instructions	AO

Question 2:
2 | Circles correct answer | AO1.1b | B1 | 84
Total | 1
Q | Marking Instructions | AO | Marks | Typical Solution

Show LaTeX source

Find the coefficient of $x^2$ in the expansion of $(1 + 2x)^7$

Circle your answer.
[1 mark]

42        4        21        84

\hfill \mbox{\textit{AQA Paper 2 2018 Q2 [1]}}

This paper (17 questions)

View full paper

Q1 1 Q2 1 Q3 1 Q4 6 Q5 2 Q6 7 Q7 8 Q8 10 Q9 14 Q10 1 Q11 1 Q12 5 Q13 8 Q14 6 Q15 9 Q16 6 Q17 14