Questions: Simplify.
w^3 cdot w^-8
Write your answer with a positive exponent only.
Transcript text: Simplify.
\[
w^{3} \cdot w^{-8}
\]
Write your answer with a positive exponent only.
Solution
Solution Steps
Step 1: Apply the Laws of Exponents
When multiplying two expressions with the same base, we add their exponents. That is:
\[
w^{a} \cdot w^{b} = w^{a + b}
\]
Here, \( a = 3 \) and \( b = -8 \). So:
\[
w^{3} \cdot w^{-8} = w^{3 + (-8)} = w^{-5}
\]
Step 2: Rewrite with a Positive Exponent
To express \( w^{-5} \) with a positive exponent, we use the rule:
\[
w^{-n} = \frac{1}{w^{n}}
\]
Thus:
\[
w^{-5} = \frac{1}{w^{5}}
\]
Final Answer
The simplified expression with a positive exponent is:
\[
\boxed{\frac{1}{w^{5}}}
\]