Question

Как упростить?.....................

Answer 1

180/(y+12)+1/6=180/y

180·6y+y(y+12)-180·6(y+12)=0, y≠0, y≠-12

1080y+y²+12y-1080y-12960=0

y²+12y-12960=0

D=144-4·(-12960)=144+51840=51984, √Д=228

у1=(-12+228)/2=108
у2=(-12-228)/2=-120