Example 1 (Index Equation – Equal base) June 15, 2018February 4, 2014 by Example 1Solve each of the following.(a) ${16}^{x}=8$ (b) ${9}^{x}{.3}^{x-1}=81$ (c) ${5}^{n+1}=\frac{1}{{125}^{n-1}}$

Question (b)

9 should be 3 square, not 3 cube.