Решите неравенство27x3+9x2−3x−164x2−4⋅8x2+4⩾0.\frac{27x^{3}+9x^{2}-3x-1}{64^{x^{2}}-4\cdot 8^{x^{2}}+4}\geqslant 0.64x2−4⋅8x2+427x3+9x2−3x−1⩾0.▸Ответ{−13}∪[13; 33)∪(33; +∞)\left\{-\frac{1}{3}\right\}\cup\left[\frac{1}{3};\,\frac{\sqrt{3}}{3}\right)\cup\left(\frac{\sqrt{3}}{3};\,+\infty\right){−31}∪[31;33)∪(33;+∞)