You can put this solution on YOUR website! Solve the inequality.
x^2 - 9 < 0
Add 9 to each side of the inequality.
x^2 - 9 + 9 < 0 + 9
Combine like terms:
-9 + 9 = 0
0 + 9 = 9
Therefore we now have:
x^2 < 9
The square root of x^2 is x.
The square root of 9 is 3.