Question 203629
{{{2w(4w+1)=1}}}
{{{8w^2 + 2w = 1}}}
{{{8w^2 + 2w - 1 = 0}}}
*[invoke quadratic "w", 8, 2, -1]



plot is here --> http://www24.wolframalpha.com/input/?i=2w(4w%2B1)%3D1