Question 634074
{{{x^2-3x-7/4=0}}}

{{{x^2-3x=7/4}}}

{{{x^2-3x+(-3/2)^2=7/4+6/4}}}

{{{(x-3/2)^2=13/4}}}

{{{x-3/2=+-sqrt(13)/2}}}

{{{x=(3+-sqrt(13))/2}}}