Question 349884
{{{f(x)=x^2+2}}}
{{{g(x)=x^2-2}}}
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{{{f(g)=g^2+2}}}
{{{f(g)=(x^2-2)^2+2}}}
{{{f(g)=x^4-4x^2+4+2}}}
{{{highlight(f(g)=x^4-4x^2+6)}}}