Solve the inequality,and write the solution using interval notation.

$$\begin{gathered} \mathrm{The} \mathrm{given} \mathrm{inequality} \mathrm{is}: \\ {\mathrm{x}}^2+4\mathrm{x}-12>0 \\ \mathrm{To} \mathrm{solve} \mathrm{the} \mathrm{inequality}, \mathrm{and} \mathrm{write} \mathrm{the} \mathrm{solution} \mathrm{using} \mathrm{interval} \mathrm{notation}. \end{gathered}$$