1\\\\(\frac{1}{3})^{x^{2}-x-20 } >(\frac{1}{3})^{o}\\\\x^{2}-x-20<0\\\\(x-5)(x+4)<0" alt="(\frac{1}{3})^{x^{2}-x-20 }>1\\\\(\frac{1}{3})^{x^{2}-x-20 } >(\frac{1}{3})^{o}\\\\x^{2}-x-20<0\\\\(x-5)(x+4)<0" align="absmiddle" class="latex-formula">
+ - +
_________₀____________₀___________
- 4 5
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x ∈ (- 4 ; 5)