Question 607427
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi
1.) x^2-8x=-12   OR x^2-8x+12 = 0
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (8 +- sqrt( 16))/(2) }}} x = 6 & x = 2
2.)1/2x^2+4x-7 =0
{{{x = (-4 +- sqrt(16+14)) }}}
{{{x = (-4 +- sqrt(30)) }}}