Answer:
Step-by-step explanation:
Alright, lets get started.
The given equation is :
[tex]x^2-9=0[/tex]
We need to add 9 in both sides of equation.
[tex]x^2-9+9=0+9[/tex]
[tex]x^2=9[/tex]
Taking square root on both sides
[tex]x=\sqrt{9}[/tex]
So there will be two values of x
[tex]x=3[/tex]
And
[tex]x = -3[/tex]
Hence the answer is 3 and -3 : Answer
Hope it will help :)
