Ever since my girlfriend ALINA left me, I decided to immerse myself in work...
( I wasn't even able to finish this post, where I have the complete solution. )
.See the comment on this post...
I can't even solve this 8th grade problem...
"E:17504. Determine the natural numbers $a\;\; and \;\;b$ , for which the number
$A=\sqrt{a^2+b+1}+\sqrt{b^2+a+4}$ is natural.
{Author : } Ştefan GOBEJ, student, Curtea de Argeş "
I have not been able to solve this problem in any reasonable time. Two solutions I have found are :
$a=0,\;b=0\;\;:\;A=\sqrt{1}+\sqrt{4}=3\;\;;$
$a=1,\;b=2\;\;:\;A=\sqrt{1+2+1}+\sqrt{4+1+4}=5$
I will raise the problem on AOPS, and I will let you know the result.

























