Question 668991
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
-2x2 - 5x + 5 = 0   ||Standard form:  ax^2 + bx + c = 0
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (5 +- sqrt( 25 + 40 ))/(-4) }}}
{{{x = (5 +- sqrt( 65 ))/(-4) }}}
{{{x = -5/4 +- sqrt( 65 )/4}}}