Rewrite the expression with a negative exponent as a fraction

Oct 13, 2025 by windailys.com 28 views

$Rewrite the expression with a negative exponent as a fraction$

Introduction

Understanding Exponents and Indices In mathematics, exponents and indices are used to represent repeated multiplication of a number. The expression $8^{\frac{8}{3}}$ involves an exponent of $\frac{8}{3}$ , which can be evaluated using the properties of exponents. In this article, we will explore the evaluation of $8^{\frac{8}{3}}$ and provide a step-by-step solution.

Evaluating the Expression

To evaluate the expression $8^{\frac{8}{3}}$ , we can use the property of exponents that states $a^{m/n} = \sqrt[n]{a^m}$ . This property allows us to rewrite the expression as $\sqrt[3]{8^8}$ .

Breaking Down the Expression

We can further simplify the expression by evaluating the exponent $8^8$ . This involves multiplying $8$ by itself $8$ times, which can be written as $8 \times 8 \times 8 \times 8 \times 8 \times 8 \times 8 \times 8$ .

Evaluating the Exponent

To evaluate the exponent $8^8$ , we can use the property of exponents that states $a^m \times a^n = a^{m+n}$ . This property allows us to rewrite the expression as $8^{1+1+1+1+1+1+1+1}$ .

Simplifying the Exponent

We can simplify the exponent $1+1+1+1+1+1+1+1$ by adding the numbers together, which gives us $8$ .

Evaluating the Expression

Now that we have simplified the exponent, we can evaluate the expression $\sqrt[3]{8^8}$ . This involves taking the cube root of $8^8$ , which can be written as $\sqrt[3]{8 \times 8 \times 8 \times 8 \times 8 \times 8 \times 8 \times 8}$ .

Evaluating the Cube Root

To evaluate the cube root, we can use the property of exponents that states $\sqrt[n]{a^m} = a^{m/n}$ . This property allows us to rewrite the expression as $8^{8/3}$ .

Simplifying the Expression

We can simplify the expression $8^{8/3}$ by evaluating the exponent $8/3$ . This involves dividing $8$ by $3$ , which gives us $2\frac{2}{3}$ .

Evaluating the Final Expression

Now that we have simplified the expression, we can evaluate the final expression $8^{\frac{8}{3}}$ . This involves multiplying $8$ by $2\frac{2}{3}$ , which can be written as $8 \times 2\frac{2}{3}$ .

Evaluating the Product

To evaluate the product, we can multiply $8$ by $2\frac{2}{3}$ , which gives us $16\frac{2}{3}$ .

Conclusion

In conclusion, the expression $8^{\frac{8}{3}}$ can be evaluated using the properties of exponents. By breaking down the expression and simplifying the exponent, we can rewrite the expression as $16\frac{2}{3}$ . This provides a clear and concise solution to the problem.

Frequently Asked Questions

What is the value of $8^{\frac{8}{3}}$ ? The value of $8^{\frac{8}{3}}$ is $16\frac{2}{3}$ .
How do I evaluate the expression $8^{\frac{8}{3}}$ ? To evaluate the expression $8^{\frac{8}{3}}$ , you can use the property of exponents that states $a^{m/n} = \sqrt[n]{a^m}$ . This allows you to rewrite the expression as $\sqrt[3]{8^8}$ .
What is the property of exponents that allows me to rewrite the expression $8^{\frac{8}{3}}$ as $\sqrt[3]{8^8}$ ? The property of exponents that allows you to rewrite the expression $8^{\frac{8}{3}}$ as $\sqrt[3]{8^8}$ is $a^{m/n} = \sqrt[n]{a^m}$ .

Step-by-Step Solution

Rewrite the expression $8^{\frac{8}{3}}$ as $\sqrt[3]{8^8}$ Use the property of exponents that states $a^{m/n} = \sqrt[n]{a^m}$ to rewrite the expression $8^{\frac{8}{3}}$ as $\sqrt[3]{8^8}$ .
Simplify the exponent $8^8$ Use the property of exponents that states $a^m \times a^n = a^{m+n}$ to rewrite the expression $8^8$ as $8^{1+1+1+1+1+1+1+1}$ .
Simplify the exponent $1+1+1+1+1+1+1+1$ Add the numbers together to get $8$ .
Evaluate the expression $\sqrt[3]{8^8}$ Take the cube root of $8^8$ to get $8^{8/3}$ .
Simplify the expression $8^{8/3}$ Evaluate the exponent $8/3$ to get $2\frac{2}{3}$ .
Evaluate the final expression $8^{\frac{8}{3}}$ Multiply $8$ by $2\frac{2}{3}$ to get $16\frac{2}{3}$ .

Final Answer

The final answer is: $\boxed{16\frac{2}{3}}$

Introduction

In the previous article, we evaluated the expression $8^{\frac{8}{3}}$ using the properties of exponents and indices. In this article, we will answer some frequently asked questions related to evaluating exponents and indices.

Q&A

Q: What is the difference between an exponent and an index?

A: An exponent and an index are both used to represent repeated multiplication of a number. However, an exponent is typically used to represent a power of a number, while an index is used to represent a root of a number.

Q: How do I evaluate an expression with a negative exponent?

A: To evaluate an expression with a negative exponent, you can use the property of exponents that states $a^{-m} = \frac{1}{a^m}$ . This allows you to rewrite the expression as a fraction.

Q: What is the property of exponents that allows me to rewrite an expression with a negative exponent as a fraction?

A: The property of exponents that allows you to rewrite an expression with a negative exponent as a fraction is $a^{-m} = \frac{1}{a^m}$ .

Q: How do I evaluate an expression with a fractional exponent?

A: To evaluate an expression with a fractional exponent, you can use the property of exponents that states $a^{m/n} = \sqrt[n]{a^m}$ . This allows you to rewrite the expression as a root.

Q: What is the property of exponents that allows me to rewrite an expression with a fractional exponent as a root?

A: The property of exponents that allows you to rewrite an expression with a fractional exponent as a root is $a^{m/n} = \sqrt[n]{a^m}$ .

Q: How do I evaluate an expression with a mixed exponent?

A: To evaluate an expression with a mixed exponent, you can use the properties of exponents that states $a^m \times a^n = a^{m+n}$ and $a^{m/n} = \sqrt[n]{a^m}$ . This allows you to rewrite the expression as a product of powers.

Q: What is the property of exponents that allows me to rewrite an expression with a mixed exponent as a product of powers?

A: The properties of exponents that allow you to rewrite an expression with a mixed exponent as a product of powers are $a^m \times a^n = a^{m+n}$ and $a^{m/n} = \sqrt[n]{a^m}$ .

Q: How do I evaluate an expression with a variable exponent?

A: To evaluate an expression with a variable exponent, you can use the properties of exponents that states $a^{m+n} = a^m \times a^n$ and $a^{m/n} = \sqrt[n]{a^m}$ . This allows you to rewrite the expression as a product of powers.

Q: What is the property of exponents that allows me to rewrite an expression with a variable exponent as a product of powers?

A: The properties of exponents that allow you to rewrite an expression with a variable exponent as a product of powers are $a^{m+n} = a^m \times a^n$ and $a^{m/n} = \sqrt[n]{a^m}$ .

Step-by-Step Solution

Rewrite the expression with a negative exponent as a fraction Use the property of exponents that states $a^{-m} = \frac{1}{a^m}$ to rewrite the expression as a fraction.
Rewrite the expression with a fractional exponent as a root Use the property of exponents that states $a^{m/n} = \sqrt[n]{a^m}$ to rewrite the expression as a root.
Rewrite the expression with a mixed exponent as a product of powers Use the properties of exponents that states $a^m \times a^n = a^{m+n}$ and $a^{m/n} = \sqrt[n]{a^m}$ to rewrite the expression as a product of powers.
Rewrite the expression with a variable exponent as a product of powers Use the properties of exponents that states $a^{m+n} = a^m \times a^n$ and $a^{m/n} = \sqrt[n]{a^m}$ to rewrite the expression as a product of powers.

Final Answer

The final answer is: $\boxed{16\frac{2}{3}}$