[tex]\displaystyle\bf\\x^{2} -32\geq 0\\\\x^{2} -(4\sqrt{2} )^{2} \geq 0\\\\(x-4\sqrt{2} )\cdot(x+4\sqrt{2} )\geq 0\\\\\\+ + + + + [-4\sqrt{2} \ ] - - - - - [4\sqrt{2} \ ]+ + + + + \\\\\\x\in\Big(-\infty \ ; \ -4\sqrt{2} \Big] \ \cup \ \Big[4\sqrt{2} \ ; \ +\infty\Big)\\\\Otvet \ : \ 6[/tex]