Решите неравенство27x+1−3⋅9x+1+3x+2−150x2−50x+12,5⩾0. \frac{27^{x+1}-3\cdot 9^{x+1}+3^{x+2}-1}{50x^{2}-50x+12{,}5}\geqslant 0. 50x2−50x+12,527x+1−3⋅9x+1+3x+2−1⩾0.▸Ответ[−1;0,5)∪(0,5;+∞) [-1; 0{,}5)\cup(0{,}5; +\infty) [−1;0,5)∪(0,5;+∞)