If f(x)=2x+1 and $g(x)=x^{2}-1$ then $g^{2}(x)=

Question

If f(x)=2x+1 and $g(x)=x^{2}-1$ then $g^{2}(x)=

Accepted Answer

$x^{4}-2x^{2}$

Answer

$x^{4}+1-2x^{2}$

Answer

$2x^{4}-1$

Answer

$2x^{4}+1$