solve 0.981 f^2/(0.981^2+(f-a)^2)=0.157, 1.5(f-a)^2+a^2(f-a)-0.981^2(f+a-1.5)=0

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.