Question

Arătaţi că
x+1/x²+1 : (x+3/4x-4 - 1/x-1) • (1- 1/x+1)= 4x/x²+1

Answer 1

Răspuns:

Explicație pas cu pas:

1/x-1 --> amplific cu 4

x+1/x2+1:(x+3/4x-4 - 4/4x-4)(x+1/x+1 - 1/x+1)=

x+1/x2+1:(x+3-4/4x-4)(x+1-1/x+1)=

x+1/x2+1:(x-1/4x-4)(x/x+1)=

x2+1/x+1*(x-1/4x-4)(x/x+1)=

rezolvi continuarea

x2= x la puterea 2

Sper ca te-am ajutat!