0,5+ raiz cuadrada de 13+8:2-6 raiz cuadrada de 5

0.5 + square root of 13 + 8:2-6 square root of 5

$${\mathtt{0.5}}{\mathtt{\,\small\textbf+\,}}{\sqrt{{\mathtt{13}}}}{\mathtt{\,\small\textbf+\,}}{\mathtt{8}} = {\mathtt{8.5}}{\mathtt{\,\small\textbf+\,}}{\sqrt{{\mathtt{13}}}}$$

$$\mathrm{\ }$$

$${\mathtt{8.5}}{\mathtt{\,\small\textbf+\,}}{\sqrt{{\mathtt{13}}}}$$   :   $${\mathtt{2}}{\mathtt{\,-\,}}{\mathtt{6}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{5}}}}$$