# Maximum possible integer square root polynomial 2: Much harder

**Number Theory**Level 5

Find the maximum possible integral value of

\[\sqrt{a^2x^2+bx+c}\]

Where \({a,b,c,x}\) are integers, \({a^2,b,c}<3000\); \({a,b,c,x}>0\); and b is odd.

You may use a calculator. I encourage you to use only a pencil and a hand held calculator because that is how I did it. There is no shame in using wolfram alpha FOR CALCULATIONS because the numbers do get quite large.