As the [tex] g(x)=x^{2}+2[/tex]
To find the value of g(3) we have to put the value of [tex]x[/tex] equal to 3 everywhere in g([tex]x[/tex])
Therefore [tex] g(3)=(3)^2+2[/tex]
on solving the equation
[tex]g(3) = 9+2 [/tex]
[tex] g(3) = 11 [/tex]
Hence g(3) =11 is the answer
Hope this will help