Chapter 1.3, Problem 71PPE

To determine

To Evaluate: The expression $7^3$

Answer to Problem 71PPE

  $7^3=343$

Explanation of Solution

Given information:

The expression $7^3$

Concept and Formula Used:

Rule of exponent $a^n=a\times a\times a\times \mathrm{..................}n\text{ times}\text{.}$

Calculation:

The given expression is $7^3$

Using

  $\begin{array}{l}{a}^n=a\times a\times a\times \mathrm{..................}n\text{ times}\text{.}\\ 7^3=7\times 7\times 7\\ 7^3=343\end{array}$

Conclusion:

  $7^3=343$