in gimana ya...tolong sama cara yang nomor 7 aja

[tex]- x^{2} +2 \leq 1 \\ - x^{2} \leq -1 \\ x \leq -1 \\ x \leq 1[/tex]
[tex] x^{2} -2 \leq 1 \\ x^{2} \leq 3 \\ x \leq -\sqrt{3} \\ x \leq \sqrt{3} \\ - \sqrt{3} \leq x \leq \sqrt{-1} [/tex][tex] \\ 1 \leq x \leq \sqrt{3} [/tex]