X (х + 5) = 104

х-5 / x = (х-1) + 4/х

(х-2) / x = 1/2

Х (х+5) = 104

х² + 5 х - 104=0

D=5²+4*104=441 (±21²)

x1 = (-5-21) / 2 = - 13

x2 = (-5+21) / 2=8

(x-5) / x = (x-1) + 4/x x≠0

x-5=x (x-1) + 4

x-5=x²-x+4

x² - 2x+9=0

D/4=1²-9 = - 8 - решений нет

(х-2) / х=1/2 х≠0

2 * (х-2) = х

2 х-4=х

2 х-х=4

х=4