F(g(x)=xkuadrat+2x+3 f(x)=xkuadrat+2 carilah g-1(x)

[tex]f(g) = x^{2} + 2x + 3 [/tex]
[tex] g^{2} + 2 = x^{2} + 2x + 3 [/tex]
[tex] g^{2} = x^{2} + 2x + 1 [/tex]
[tex] g^{2} = ( x + 1)^{2} [/tex]
[tex]g = x + 1[/tex]

[tex]y = x + 1[/tex]
[tex]y - 1 = x[/tex]
[tex] g^{-1} (x) = x - 1[/tex]