Proof

68%

$n\,$ is an integer. Prove algebraically that the sum of $(n + 4) (n + 3)$ and $n + 4$ is always a square number.

[2]

68%

$n\,$ is an integer. Prove algebraically that the sum of $(n + 4) (n + 3)$ and $n + 4$ is always a square number.

[2]

Proof Questions