rapid!!!!!!!!!!!!!!
![Rapid class=](https://ro-static.z-dn.net/files/d6f/d3d6a42d09be1ffee873715e9c1d0fc9.jpg)
x/3=4/y
facem produsul miezilor este egal cu produsul extremilor
deci xy=12
deci x^2×y^2=12^2=144
asadar x^2×y^2+1=145