Solve the following equations.In order for a light source to provide maximum (circular) il...

Solve the following equations.

In order for a light source to provide maximum (circular) illumination to a workroom, the light must be hung at a certain height. While the complete development requires trigonometry, we find that maximum illumination is obtained at the solutions of the equation shown, where h is the height of the light, k is a constant, and the radius of illumination is 12 ft. Solve the equation for h by factoring the least power and simplifying the result: .