## Precalculus (6th Edition) Blitzer

The expression $b^{n}$ is an exponential expression. It can be read as $n^{th}$ power of b or b to the $n^{th}$ power since $b^{n}$=b$\times$b$\times$b. . .$\times$b in which b appears as a factor n times. An example is: $3^{4}$=3$\times$3$\times$3$\times$3=81
The expression $b^{n}$ is an exponential expression. It can be read as $n^{th}$ power of b or b to the $n^{th}$ power since $b^{n}$=b$\times$b$\times$b. . .$\times$b in which b appears as a factor n times. An example is: $3^{4}$=3$\times$3$\times$3$\times$3=81