Since \(5\times 5=25\), the square root of \(25\) is \(5\).
\[E=\sqrt{2\times 5-6-\sqrt{9+\sqrt{49}}}\]
Since \(7\times 7=49\), the square root of \(49\) is \(7\).
\[E=\sqrt{2\times 5-6-\sqrt{9+7}}\]
Simplify \(9+7\) to \(16\).
\[E=\sqrt{2\times 5-6-\sqrt{16}}\]
Since \(4\times 4=16\), the square root of \(16\) is \(4\).
\[E=\sqrt{2\times 5-6-4}\]
Simplify \(2\times 5\) to \(10\).
\[E=\sqrt{10-6-4}\]
Simplify \(10-6\) to \(4\).
\[E=\sqrt{4-4}\]
Simplify \(4-4\) to \(0\).
\[E=\sqrt{0}\]
Simplify \(\sqrt{0}\) to \(0\).
\[E=0\]
E=0
