Răspunsuri

2014-05-14T19:38:51+03:00
X-1/x=4 4x=x-1 4x-x=-1 3x=-1 x= -1/3 inlocuiesti in cealatra fractie data: (-1/3)^2+1/ (-1/3)^2= 1/9+9/ 1/9= 10/9 / 1/9= 10/9 * 9/1= 10