Question 910423
4n^2-10n-104=0
{{{n = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{n = (10 +- sqrt( 100 - 4*4*(-104)) ))/(8) }}}
{{{n = (10 +- sqrt( 1764) ))/(8) }}}
n = 10/8 ±  42/8
n = -32/8 = -4
n = 52/8 = 6.5