Question 464382
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
{{{x=(-(-7)+-sqrt(-7^2-4*1*11))/(2*1)}}}
solve for {{{x=-(-7)+sqrt(-7^2-4*1*11))/(2*1)}}}
and {{{x=(-(-7)-sqrt(-7^2-4*1*11))/(2*1)}}}
that will give you both answers you need