Question

реши уровнение 1/2х+1/6х+5=х

Answer 1

1/2х+1/6х+5=х

1/2х+1/6х+5-х = 0

(3+1+30х-6х²)/6х = 0

2(2+15х-3х²)/6х=0

(2+15х-3х²)/3х=0 / * 3х

2+15х-3х²=0

3x²-15х-2=0

D = 225 - 4 *3 *(-2)= 249

x= (15±√249)/6

Ответ: x= (15±√249)/6