\[(4x - 6)^{2} \geq (6x - 4)^{2}\]
\[16x^{2} - 48x + 36 \geq 36x^{2} - 48x + 16\]
\[- 20x^{2} \geq - 20\]
\[20x^{2} \leq 20\]
\[x^{2} \leq 1\]
\[- 1 \leq x \leq 1.\]
\[Ответ:\ - 1 \leq x \leq 1.\]