The value of (2012)(2013)(2014)(2015)+1 is perfect squae. What is the positive root of this? Please help me how to answer this question without the use of calculator.

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TopNewest\(n(n+1)(n+2)(n+3)+1 =n(n+3)(n+2)(n+1)+1 =(n^{2}+3n)(n^{2}+3n+2) +1\) \(=(n^{2}+3n+1-1)(n^{2}+3n+1+1) +1 =(n^{2}+3n+1)^{2}\) by set \(n=2012\) and sqr root both sides you'll get what you want – Sereysopea Ung · 2 years ago

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– Roland Casuga · 2 years ago

Thank you Sereysopea UngLog in to reply