Example 2 (Index Equation – Equal Base) June 15, 2018February 4, 2014 by Example 2Solve each of the following.(a) $27({81}^{3x})=1$ (b) $\sqrt{{81}^{n+2}}=\frac{1}{{3}^{n}{27}^{n-1}}$ (c) ${8}^{x-1}=\frac{4}{\sqrt{{2}^{x+3}}}$