Question 769176
{{{f(x)=3x^2+2}}}
{{{y=3x^2+2}}}
{{{y-2=3x^2}}}
{{{(y-2)/3=x^2}}}
{{{sqrt((y-2)/3)=x}}}
{{{x=sqrt((y-2)/3)}}}
{{{f^(-1)(x)=sqrt((x-2)/3)}}}