Simplify \({1}^{2}\) to \(1\).
\[{2}^{2}-(1-{3}^{2}-1)-{3}^{2}-{2}^{2}\]
Simplify \({3}^{2}\) to \(9\).
\[{2}^{2}-(1-9-1)-9-{2}^{2}\]
Simplify \(1-9\) to \(-8\).
\[{2}^{2}-(-8-1)-9-{2}^{2}\]
Simplify \(-8-1\) to \(-9\).
\[{2}^{2}-(-9)-9-{2}^{2}\]
Simplify \({2}^{2}\) to \(4\).
\[4-(-9)-9-4\]
Remove parentheses.
\[4+9-9-4\]
Simplify \(4+9\) to \(13\).
\[13-9-4\]
Simplify \(13-9\) to \(4\).
\[4-4\]
Simplify.
\[0\]
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