Question

Va rog sa ma ajutati la acest exercitiu ,Dau COROANA numai cine raspunde corect , cei care scriu la vrajeala au BAN 24 DE ORE !!​

Answer 1

x^2+x/x^2-x = x×(x+1)/x×(x-1)=x+1/x-1

x^2-x/x^3-x = x×(x-1)/x×(x^2-1) = x×(x-1)/x×(x-1)(x+1)= x-1 / (x-1)(x+1)= 1/x+1

x^3-x/x^2+x = x×(x^2-1)/x×(x+1)= x×(x-1)(x+1)/x×(x+1)= (x-1)(x+1)/x+1 = x-1