Question 897000
If the smallest number is x.

{{{x^2+ (x+1)^2 +(x+2)^2= 110}}}

{{{x^2+ x^2+ 2x+ 1+ x^2 +4x+4 = 110}}}

{{{3x^2+ 6x -105 =0}}}

I used this formula {{{x = (-b +- sqrt(b^2-4*a*c ))/(2*a) }}}

{{{x= (-6 +- 36)/6}}}

{{{x=-7}}} or {{{x= 5}}}

There are 2 solutions.

-7, -6, -5 and 5,6,7