Answer :
Simplify the equation as if it's just an ordinary equation. Just leave the inequality as it is. So,
x² < 100
x <√100
x = +/- 10
Those less than the absolute value of 10 applies. The answers would be A and D.
x² < 100
x <√100
x = +/- 10
Those less than the absolute value of 10 applies. The answers would be A and D.