Question 869946
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.


Answer:

x < 3






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algebra tutor