[−94,−74],x≠−2\left[-\frac{9}{4},-\frac{7}{4}\right], x \neq-2[−49,−47],x=−2
[−74,−14]\left[-\frac{7}{4},-\frac{1}{4}\right][−47,−41]
[−94,14],x≠−2\left[-\frac{9}{4}, \frac{1}{4}\right], x \neq-2[−49,41],x=−2
[−74,14]\left[-\frac{7}{4}, \frac{1}{4}\right][−47,41]