1. **State the problem:** We want to understand what $8^{1/2}$ means using the properties of integer exponents and define it consistently.
2. **Use the power of a power rule:** The rule states that $(a^m)^n = a^{m \times n}$.
3. **Apply the rule to $(8^{1/2})^2$:**
$$
(8^{1/2})^2 = 8^{1/2 \times 2} = 8^1 = 8
$$
4. **Interpretation:** For the power of a power rule to hold, raising $8^{1/2}$ to the power 2 must give 8.
5. **Which value satisfies this?**
- $8$ squared is $8^2 = 64$, not 8.
- $\sqrt{8}$ squared is $8$, which matches.
- $\sqrt[3]{8}$ squared is $(2)^2 = 4$, not 8.
- $8^2$ squared is $8^4$, not 8.
- $8^3$ squared is $8^6$, not 8.
6. **Conclusion:** We define
$$
8^{1/2} = \sqrt{8}
$$
because it satisfies the power of a power rule and the properties of exponents.
**Final answer:** $8^{1/2} = \sqrt{8}$
Rational Exponents B08010
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