Решите неравенство (11-12x)^2≤(13-12x)^2

(11-12x)^2≤(13-12x)^211^2-2*11*12x+(12x)^2≤13^2-2*13*12x+(12x)^2121-264x+144x^2≤169-312x+144x^2121-264x+144x^2-169+312x-144x^2≤0-48+48x=048x=48x=48/48х=1