0} \atop {-x>0,-x\ne 1}} \right. \; \left \{ {{x>-12} \atop {x<0,x\ne -1}} \right. \; x\in (-12,-1)U(-1,0)\\\\x+12=(-x)^2\\\\x^2-x-12=0\\\\x_1=-3,\; x_2=4\; (teor.\; Vieta)\\\\Otvet:\; x=-3." alt="log_{-x}(x+12)=2\\\\OOF:\; \left \{ {{x+12>0} \atop {-x>0,-x\ne 1}} \right. \; \left \{ {{x>-12} \atop {x<0,x\ne -1}} \right. \; x\in (-12,-1)U(-1,0)\\\\x+12=(-x)^2\\\\x^2-x-12=0\\\\x_1=-3,\; x_2=4\; (teor.\; Vieta)\\\\Otvet:\; x=-3." align="absmiddle" class="latex-formula">