Question 260257
step 1 - set = 0 and then factor as
{{{a^2+5a-4=0}}}
we need to use quadratic to solve for x in this case. S0 we get
{{{x = (-5 +- sqrt( 25-4*1*(-4) ))/(2) }}}
which simplifies to 
{{{x = (-5 +- sqrt( 41))/2 }}}