Question 332517
{{{4x^2-12x-7=0}}}
{{{4x^2-14x+2x-7=0}}}
{{{2x(2x-7)+1(2x-7)=0}}}
{{{(2x+1)(2x-7)=0}}}
{{{x=-1/2}}}
OR
{{{x= 7/2}}}