Math Problem Statement

Evaluate \( \frac{2^3 \times 2^{-3}}{2^2} \).

Solution

To evaluate the given expression:

23×2322\frac{2^3 \times 2^{-3}}{2^2}

Step-by-Step Solution:

  1. Simplify the numerator 23×232^3 \times 2^{-3}:

    • Use the property of exponents: am×an=am+na^m \times a^n = a^{m+n}.
    • 23×23=23+(3)=202^3 \times 2^{-3} = 2^{3 + (-3)} = 2^0.
  2. Simplify 202^0:

    • By definition, any non-zero number raised to the power of 00 is 11.
    • So, 20=12^0 = 1.
  3. Divide the numerator by 222^2:

    • The expression becomes: 122\frac{1}{2^2}.
    • Simplify 22=42^2 = 4.
  4. Final result: 14\frac{1}{4}

Final Answer:

14\frac{1}{4}

Would you like further clarification or have questions? Here are related questions to explore further:

  1. What are the general laws of exponents, and how are they applied in similar problems?
  2. Why does a0=1a^0 = 1 hold true for any non-zero number aa?
  3. How can you interpret this result in real-world applications, such as scaling factors?
  4. How do negative exponents relate to fractions, e.g., an=1ana^{-n} = \frac{1}{a^n}?
  5. Can this problem be extended to expressions with variables like xmxnxp\frac{x^m \cdot x^{-n}}{x^p}?

Tip: Always simplify exponents step-by-step, applying rules consistently to avoid mistakes!

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Math Problem Analysis

Mathematical Concepts

Exponents
Simplification
Laws of Exponents

Formulas

\( a^m \times a^n = a^{m+n} \)
\( \frac{a^m}{a^n} = a^{m-n} \)
\( a^0 = 1 \)

Theorems

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Suitable Grade Level

Grades 6-8