Question

Помогите решить пожалуйста х:3=5:(х-1)
2:(х-2)=(х+2):6

Answer 1

$frac{x}{3} = frac{5}{x - 1} \ x(x - 1) = 15 \ x {}^{2} - x - 15 = 0 \ d = sqrt{61} \ x1 = frac{1 + sqrt{61} }{2} \ x2 = frac{1 - sqrt{61} }{2} \ \ frac{2}{x - 2} = frac{x + 2}{6} \ 12 = (x - 2)(x + 2) \ 12 = x^{2} - 4 \ x {}^{2} = 16 \ x1 = 4 \ x2 = - 4$