Express the following in exponential form.
`5xx5xx7xx7xx7`

Answer

To express the given expression `5xx5xx7xx7xx7` in exponential form, we will follow these steps:

### Step 1: Identify the base numbers and their occurrences
- The expression consists of the numbers 5 and 7.
- Count how many times each number appears:
- The number 5 appears **2 times**.
- The number 7 appears **3 times**.

### Step 2: Write each base number with its exponent
- For the number 5, since it appears 2 times, we can express it as \( 5^2 \).
- For the number 7, since it appears 3 times, we can express it as \( 7^3 \).

### Step 3: Combine the bases with their exponents
- Now we can combine these two parts together using multiplication:
\[ 5^2 \times 7^3 \]

### Final Answer
Thus, the expression `5xx5xx7xx7xx7` in exponential form is:
\[ 5^2 \times 7^3 \]

---