Răspuns :
[tex]2 x^{2} = 32 -----: x^{2} =32/2 -----: x^{2} =16 ----: x=4[/tex]
[tex]3.a) 2x^{2} = 32\\ \\ x^{2} = \frac{32}{2} \\ \\ x^{2} =16 \\ \\ x=4[/tex]