3\\ \log_4(5x-21)>\log_464\\ 5x-21>64\\ 5x>85\\ x>17" alt="\log_4(5x-21)>3\\ \log_4(5x-21)>\log_464\\ 5x-21>64\\ 5x>85\\ x>17" align="absmiddle" class="latex-formula">
\log_{0.2}(4-3x)\\ \begin{cases} 6+5x<4-3x\\ 6+5x>0 \end{cases}\\ \begin{cases} 8x<-2\\ 5x>-6 \end{cases}\\ x\in(-\frac65,-\frac14)" alt="\log_{0.2}(6+5x)>\log_{0.2}(4-3x)\\ \begin{cases} 6+5x<4-3x\\ 6+5x>0 \end{cases}\\ \begin{cases} 8x<-2\\ 5x>-6 \end{cases}\\ x\in(-\frac65,-\frac14)" align="absmiddle" class="latex-formula">
2\\ x>1" alt="0.3^{3x-1}<0.3^2\\ 3x-1>2\\ x>1" align="absmiddle" class="latex-formula">
-1" alt="4^{2-x}<4^3 2-x<3\\ x>-1" align="absmiddle" class="latex-formula">