Question

Solve the equation than round to the nearest tenth. Be advised that the symbol "^" means the "raised to second power"C^2-81=144

Answer 1

$c\text{ = +15.0 or -15.0}$

Here, we want to solve the given equation

We proceed as follows;

$\begin{gathered} c^2-81\text{ = 144} \\ c^2\text{ = 144 + 81} \\ c^2=\text{ 225} \\ c\text{ = }\pm\sqrt[]{225} \\ c\text{ = +15 or -15} \end{gathered}$