Răspuns:
Explicație pas cu pas:
Bună!
Varianta 1
[tex]\bf x^{2} = 16[/tex]
[tex]\bf x^{2} = \sqrt{16}[/tex]
[tex]\bf x^{2} = \sqrt{4^{2}}[/tex]
[tex]\bf x = \pm 4\implies \large\boxed{\boxed{\bf x_{1}=-4~~si~ ~x_{2}=4}}[/tex]
Varianta 2 (clasa a 5 a)
[tex] \bf {x}^{2} = 16 [/tex]
[tex]\bf {x}^{2} = {4}^{2} \implies \large\boxed{\boxed{\bf x = 4}}[/tex]
==pav38==
