September 13, 2015 Is this is true property? Leave a comment Hello, I need some aid to see if this true: $y^2+x*\sqrt{4x^2+y^2}=y^2+\frac{x}{y}*\sqrt{4(\frac{x}{y})^2+1}$ provide that y>0 and x>0. … Advertisements Share this:TwitterFacebookGoogleLike this:Like Loading... Related Posted by ronaldconnelly423.