Question 609024
  <pre><font face = "Tohoma Ital" size = 3 color = "indigo"><b> 
Hi
3x^2-4x-7=0
using the Quadratic formula:
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (4 +- sqrt( 16+84 ))/(6) }}}
{{{x = (4 +- sqrt( 100))/(6) }}}
{{{x = (4 +- 10)/(6) }}}
   x = 15/6 = 5/2
   x = -6/6 = -1
  x = -1,5/2