Solve the System by the Substitution Method $\begin{aligned}x^{2}+y^{2} &=13 \\y &=x^{2}-1\end{aligned}$

Short Answer

Solve the system by the substitution method.
$\begin{aligned}x^{2}+y^{2} &=13 \\y &=x^{2}-1\end{aligned}$