Q62. - Algebra 1

Question

Evaluate each expression.

$7^2$

Step-by-Step Solution

Answer

The solution is 49.

Step 1. State the formula.

For any real number $a$, $a^2=a\times a$.

Step 2. List the given objective.

To evaluate $7^2$.

Step 3. Evaluate the expression.

Put $a=7$ in $a^2=a\times a$ to get,

$\begin{array}{l}{7}^2=7\times 7\\ =49\end{array}$

So, $7^2=49$.