Answer :

To solve the expression \( r^2 \cdot r \cdot r^5 \), let's follow a step-by-step process:

1. Identify the Problem:
We have the expression \( r^2 \cdot r \cdot r^5 \) to simplify.

2. Recall the Properties of Exponents:
One of the key properties of exponents is that when you are multiplying bases that are the same, you add their exponents.

In mathematical terms:
[tex]\[ a^m \cdot a^n = a^{m+n} \][/tex]
where \( a \) is the base, and \( m \) and \( n \) are the exponents.

3. Apply the Property to the Given Expression:
Here, \( r \) is the base, and the exponents are 2, 1, and 5 respectively (note that \( r \) can be written as \( r^1 \)).

So, the expression \( r^2 \cdot r \cdot r^5 \) can be simplified by adding the exponents:
[tex]\[ r^2 \cdot r \cdot r^5 = r^{2+1+5} \][/tex]

4. Simplify the Exponents:
Now, add the exponents together:
[tex]\[ 2 + 1 + 5 = 8 \][/tex]

5. Write the Simplified Expression:
Therefore, the simplified expression is:
[tex]\[ r^8 \][/tex]

Thus, the answer is [tex]\( r^8 \)[/tex].

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