The expression in the image is $(7^8)^3$.

To solve this, we apply the power of a power rule in exponents, which states:

$(a^m)^n = a^{m \cdot n}$

Here, $a = 7$, $m = 8$, and $n = 3$. Thus, we get:

$(7^8)^3 = 7^{8 \cdot 3} = 7^{24}$

The simplified expression is $7^{24}$.

Would you like further explanation, or do you have any specific questions about this?

Related Questions:

1. How do you simplify expressions with multiple exponents?
2. What is the general rule for multiplying powers of the same base?
3. How would you calculate $7^{24}$ using a calculator?
4. Can you apply this exponent rule to roots as well?
5. What are some real-world applications of exponential powers?

Tip:

When dealing with multiple powers in an expression, always combine exponents carefully using the laws of exponents to simplify calculations.