Помогите плиз,решите все системы

Решите задачу:

$1)\; \; \left \{ {{x^2+x-12 \leq 0} \atop {x-2\ \textless \ 0}} \right. \; \left \{ {{(x-3)(x+4) \leq 0} \atop {x\ \textless \ 2}} \right. \; \left \{ {{x\in [\, -4,3\, ]} \atop {x\in (-\infty ,2)}} \right. \; \; x\in [-4,2)\\\\2)\; \; \left \{ {{x^2-2x-3\ \textgreater \ 0} \atop {x^2+4x-12\ \textless \ 0}} \right. \; \left \{ {{(x+1)9x-3)\ \textgreater \ 0} \atop {(x+6)(x-2)\ \textless \ 0}} \right. \; \left \{ {{x\in (-\infty ,-1)\cup (3,+\infty )} \atop {x\in (-6,2)}} \right. \; x\in (-6,-1)$

$3)\; \; \left \{ {{x^2-x-12\ \textless \ 0} \atop {x^2-3x+2\ \textgreater \ 0}} \right. \; \left \{ {{(x+3)(x-4)\ \textless \ 0} \atop {(x-1)(x-2)\ \textgreater \ 0}} \right. \; \left \{ {{x\in (-3,4)} \atop {x\in (-\infty ,1)\cup (2,+\infty )}} \right. \; x\in (-3,1)\cup (2,4)$