Respuesta :

x^2 - 9 = 0
x^2 = 9
x = 3

3^2 - 9 = 0
9 - 9 = 0
0 = 0

The answer is x = 3

Hope this helps =)
NoNameWasGiven

Answer: x = 3, x= - 3

Step-by-step explanation:

x^2 - 9 = 0

=> x^2 = 9

=> x = 3, x= - 3