Question

Dacă x + 1 / x = 36 x -1/x =?

Answer 1

x(x+1)= x(36x-1) = x la adoua +x = 36x la adoua -x = x la adoua +x+x - 36x la adoua = -36x la adoua + 2x se imparte ecuatia la 2 si devine -18x la adoua + x 
sper ca te-am ajutat

Answer 2

x+1/x= 36=> x+1 =36x => 1=36x-x=> 1=35x=> 1/35=x
 mergem si inlocuim x-ul aflat in ecuatia x-1/x => (1/35-1)/(1/35) = (1-35)/35 inmultit cu 35 = -34  deci x-1/x =-34