Rezolvati ecuatia (3x+1)=...
![Rezolvati Ecuatia 3x1 class=](https://ro-static.z-dn.net/files/d61/c9465d3e4f4251f4b4d3bf55771cba3c.jpg)
Răspuns:
9x²+6x+1=6x+18√2+28 ; 9x²+6x-6x=18√2+28-1 ; 9x²=18√2+27 ; x²=9(2√2+3)/9 ; x²=2√2+3 ; x²= (√2+1)² ; x=±(√2+1)
Explicație pas cu pas: