Question 42491
-4x^2 + 4x - 1 = 0
{{{b^2 - 4ac}}}
{{{4^2 - 4(-4)(-1)}}}
{{{16 - 16}}}
{{{0}}}
There is only one real solution.
{{{ graph( 600, 600, -10, 10, -10, 10, -4x^2 + 4x - 1) }}}