Respuesta :

Answer:

Step-by-step explanation:

4[tex]x^{2}[/tex] - 6 = 394

4[tex]x^{2}[/tex]  = 400

[tex]x^{2}[/tex] = 100

x = 10

X=10

Explanation: 394 plus 6 is 400. Divided by 4 is 100. 10 squared is 10