Solve for \(x:\) \[\frac{\lvert x^2 - 144 \rvert}{\lvert x^2 + 144 \rvert} < 1 .\]
Solve for \(x:\) \[\lvert x^2 + 16 \rvert - \lvert x^2 - 16 \rvert > 2. \]
Solve for \(x:\) \[\lvert x^2 + 288 \rvert < \lvert 288 - 2x^2 \rvert. \]
Solve for \(x:\) \[\lvert x^2 \rvert < \lvert x^2 + 16x \rvert .\]
Solve for \(x:\) \[\lvert x^2 + 36 \rvert < \lvert x^2 + 6x \rvert .\]