Question 387089
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Hi
finding the discriminant: 
 x^2+4=5x
 x^2 - 5x + 4 = 0
 {{{sqrt( b^2-4*a*c ) = sqrt(25-4*4) = sqrt(9)= 3}}}
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{x = (-5 +- 3)/(2) }}} 
   x =  -8/2 = -4
   x =  -2/2 = -1