Решите неравенство8x3+4x2−2x−181x2−6⋅9x2+9⩾0.\frac{8x^{3}+4x^{2}-2x-1}{81^{x^{2}}-6\cdot 9^{x^{2}}+9}\geqslant 0.81x2−6⋅9x2+98x3+4x2−2x−1⩾0.▸Ответ{−12}∪[12; 22)∪(22; +∞)\left\{-\frac{1}{2}\right\}\cup\left[\frac{1}{2};\,\frac{\sqrt{2}}{2}\right)\cup\left(\frac{\sqrt{2}}{2};\,+\infty\right){−21}∪[21;22)∪(22;+∞)