Recent content by peterpanhandle

Thank you for the quick reply and sorry for my slow thanks. How very typical of me that it's some algebraic error :blushing: Thanks again!

Homework Statement Solve 4y-y2=x for y. The Attempt at a Solution First I tried using the quadratic equation with a=-1 b=4 c=-x y=(-b±(42-4(-1)(-x))(1/2))/2(-1) That got me this far: y=2±(8-2x)(1/2) Then I checked wolfram and now I am confused . Did I not approach this corectly?