Respuesta :
					                   we have that
(x-4)/(x+5)(x-1)
the rational expression is equal to zero whenever its numerator is zero
x-4=0---------> x=4
the answer is x=4
					                
					             (x-4)/(x+5)(x-1)
the rational expression is equal to zero whenever its numerator is zero
x-4=0---------> x=4
the answer is x=4
 
					                  