# Can someone tell me how this is a quadratic equation?

I'm not sure how to complete this- Could someone help describe to me how exactly this is a quadratic equation? Or how can I manipulate the variables to make it one? It has been a while since I've worked with quadratics, also, I've never seen one like this before. Thanks for looking.

$$\frac{1}{200-s} + \frac{1}{s} = \frac{1}{32}$$

• Multiply everything by the common denominator. – Crostul May 20 '17 at 21:18

• @pstumps Get common denominator. $$\frac{1}{200-s}+\frac1s = \frac{1}{200-s}\cdot \frac{s}{s} + \frac{1}{s}\cdot\frac{200-s}{200-s} = \frac{s}{(200-s)s} + \frac{200-s}{(200-s)s} = \frac{s+200-s}{(200-s)s} = \frac{200}{200s-s^2}.$$ – Eff May 20 '17 at 21:32