1\4 + 1\х = х + х\12 решите

Question

1\4 + 1\х = х + х\12 решите

Answer 1

Ответ:
1/4+1/x=x+x/12 |*12x
3x+12=12x^2+x
2x-12x^2+12=0
12x^2-12-2x=0 |/2
6x^2-x-6=0
d=1+6*4*1=25
x1=1+5/6=1
x2=-4/6