Skip to content

Course home

Proof

Proof

MediumHard
12345678910111213141516171819202122232425
Question 1

n n\,n is an integer. Prove algebraically that the sum of n(n+4)n(n + 4)n(n+4) and 4 is always a square number.

[2]
Markscheme

Proof Questions

  1. GCSE
  2. /Maths
  3. /Proof

207 exam-style questions on CCEA GCSE Maths Proof. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank