Ответ:
[tex]x\in(-\infty;-\frac{2}{3}][/tex]
Пошаговое объяснение:
2)
[tex](x-2)(2+x)\geq 2-(x+4)(1-x)\\\\(x-2)(x+2)\geq 2-(x-x^2+4-4x)\\\\x^2-4\geq 2-x+x^2-4+4x\\\\x^2+x-x^2-4x\geq 2-4+4\\\\-3x\geq 2\ \ \ |:(-3)\\\\x\leq -\frac{2}{3}\\\\x\in(-\infty;-\frac{2}{3}][/tex]
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Answers & Comments
Ответ:
[tex]x\in(-\infty;-\frac{2}{3}][/tex]
Пошаговое объяснение:
2)
[tex](x-2)(2+x)\geq 2-(x+4)(1-x)\\\\(x-2)(x+2)\geq 2-(x-x^2+4-4x)\\\\x^2-4\geq 2-x+x^2-4+4x\\\\x^2+x-x^2-4x\geq 2-4+4\\\\-3x\geq 2\ \ \ |:(-3)\\\\x\leq -\frac{2}{3}\\\\x\in(-\infty;-\frac{2}{3}][/tex]