Question

Resolva a equação x - 5/x - 39/x^2+5x = 0

Answer 1

Bom dia

(x - 5)/x - 39/(x² + 5x) = 0 

(x - 5)/x - 39/(x*(x + 5)) = 0

(x - 5) - 39/(x + 5) = 0

(x - 5)*(x + 5) - 39 = 0

x² - 25 - 39 = 0

x² = 64

x1 = -8
x2 = +8