(8a^-3)^-2/3

3 min read Jun 16, 2024
(8a^-3)^-2/3

Simplifying the Expression (8a^-3)^-2/3

This article will guide you through the process of simplifying the expression (8a^-3)^-2/3. We will use the rules of exponents to simplify this expression step-by-step.

Understanding the Rules of Exponents

Before we start, let's review the essential rules of exponents that we'll be using:

  • Product of powers: x^m * x^n = x^(m+n)
  • Quotient of powers: x^m / x^n = x^(m-n)
  • Power of a power: (x^m)^n = x^(m*n)
  • Negative exponent: x^-n = 1/x^n
  • Fractional exponent: x^(m/n) = (n√x)^m

Simplifying the Expression

Let's break down the simplification process:

  1. Apply the power of a power rule: (8a^-3)^-2/3 = 8^-2/3 * (a^-3)^-2/3

  2. Simplify the exponents: 8^-2/3 * (a^-3)^-2/3 = 8^-2/3 * a^2

  3. Apply the negative exponent rule to 8^-2/3: 8^-2/3 * a^2 = 1/8^(2/3) * a^2

  4. Simplify 8^(2/3): 1/8^(2/3) * a^2 = 1/(∛8)^2 * a^2 = 1/2^2 * a^2

  5. Simplify the final expression: 1/2^2 * a^2 = a^2 / 4

Therefore, the simplified form of (8a^-3)^-2/3 is a^2 / 4.

Conclusion

By applying the rules of exponents, we have successfully simplified the expression (8a^-3)^-2/3. Remember to break down complex expressions into smaller steps and utilize the appropriate exponent rules. This will ensure accurate and efficient simplification.

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