Решит неравенства (x+2)(x-6)-(x-7)(x+7) меньше 30-3x

[latex] (x+2)(x-6)-(x-7)(x+7)\ \textless \ 30-3x \\x^2-6x+2x-12-(x^2-49)\ \textless \ 30-3x \\x^2-4x-12-x^2+49\ \textless \ 30-3x \\37-4x\ \textless \ 30-3x \\4x-3x\ \textgreater \ 37-30 \\x\ \textgreater \ 7 \\x \in (7;+\infty)[/latex] Ответ: [latex]x \in (7;+\infty)[/latex]