0, a\ne 1\\\\2)x^3+2x^2-x-2>0\\\\x^2(x+2)-(x+2)>0\\\\(x+2)(x-1)(x+1)>0\\\\---(-2)+++(-1)---(1)+++x\in (-2,-1)U(1,+\infty)\\\\3)\; 1<5^{x}<125\\\\5^0<5^{x}<5^3\\\\0<x<3" alt="1)\; y=a^{x}, a>0, a\ne 1\\\\2)x^3+2x^2-x-2>0\\\\x^2(x+2)-(x+2)>0\\\\(x+2)(x-1)(x+1)>0\\\\---(-2)+++(-1)---(1)+++x\in (-2,-1)U(1,+\infty)\\\\3)\; 1<5^{x}<125\\\\5^0<5^{x}<5^3\\\\0<x<3" align="absmiddle" class="latex-formula">