# A level maths pure question

#1
Last edited by Kingemperor07; 1 month ago
0
1 month ago
#2
(Original post by Kingemperor07)
let a = n
let b = n + c
(where n and c > 0)

then you just plug them in to a^2 + b^2 and 2ab and you will have a c^2 extra
0
1 month ago
#3
(Original post by juicygcse)
let a = n
let b = n + c
(where n and c > 0)

then you just plug them in to a^2 + b^2 and 2ab and you will have a c^2 extra
Along the same lines, it would probably be better to start from the simple binomial
(a-b)^2
0
#4
(Original post by juicygcse)
let a = n
let b = n + c
(where n and c > 0)

then you just plug them in to a^2 + b^2 and 2ab and you will have a c^2 extra
Thanks!

(Original post by mqb2766)
Along the same lines, it would probably be better to start from the simple binomial
(a-b)^2
Thanks!
0
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