2x} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{21x+14-21x-6>2x} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{-2x>-8} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{x<4} \atop {(x-5)(x+8)<0}} \right. " alt=" \left \{ {{7(3x+2)-3(7x+2)>2x} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{21x+14-21x-6>2x} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{-2x>-8} \atop {(x-5)(x+8)<0}} \right. \\ \left \{ {{x<4} \atop {(x-5)(x+8)<0}} \right. " align="absmiddle" class="latex-formula">
Промежуток смотреть во вложения.
Ответ:
