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0,\; \; t^2-t-12<0,\\\\t_1=4,\; \; \; t_2=-3\\\\+++(-3)---(4)+++" alt="4^{x}-2^{x}<12\\\\(2^{x})^2-2^{x}-12<0\\\\t=2^{x}>0,\; \; t^2-t-12<0,\\\\t_1=4,\; \; \; t_2=-3\\\\+++(-3)---(4)+++" align="absmiddle" class="latex-formula">
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х=-3, -2,-1,0,1 - целые решения на [-3,3]