Respuesta :

[tex]a\text{ = +12.6 or -12.6}[/tex]

Here, we want to solve the given equation

We proceed as follows;

[tex]\begin{gathered} a^2+6^2=14^2 \\ a^2+36\text{ = 196} \\ a^2=\text{ 196-36} \\ a^2\text{ = 160} \\ a\text{ = }\sqrt[]{160} \\ a\text{ = +12.6 or -12.6} \end{gathered}[/tex]