Skip to content

Course home

Proof

Proof

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113
Question 4

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 Eduqas GCSE Maths Proof. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank