$$(5+8)+ \sqrt{ { 6 }^{ 2 } +4- { \left(2+1 \right) }^{ 2 } }$$
$\sqrt{31}+13\approx 18.567764363$
$$13+\sqrt{6^{2}+4-\left(2+1\right)^{2}}$$
$$13+\sqrt{36+4-\left(2+1\right)^{2}}$$
$$13+\sqrt{40-\left(2+1\right)^{2}}$$
$$13+\sqrt{40-3^{2}}$$
$$13+\sqrt{40-9}$$
$$13+\sqrt{31}$$
Show Solution
Hide Solution
