Math Problem Statement

Find the value of x: log_3 x = 5

Solution

The equation provided is:

log3x=5\log_3 x = 5

To solve for xx, we need to rewrite this logarithmic equation in its exponential form. The general form of a logarithmic equation is:

logby=zwhich is equivalent toy=bz\log_b y = z \quad \text{which is equivalent to} \quad y = b^z

In this case:

log3x=5is equivalent tox=35\log_3 x = 5 \quad \text{is equivalent to} \quad x = 3^5

Now, calculate 353^5:

35=3×3×3×3×3=2433^5 = 3 \times 3 \times 3 \times 3 \times 3 = 243

Thus, the value of xx is:

x=243x = 243

Would you like more details or have any questions?

Here are some related questions to explore:

  1. How do you convert between logarithmic and exponential forms?
  2. What are the properties of logarithms that can simplify solving equations?
  3. How does changing the base of the logarithm affect the result?
  4. How can you use a calculator to solve logarithmic equations with different bases?
  5. What is the meaning of logarithmic scales in real-world applications?

Tip: When solving logarithmic equations, always remember that you can switch to the exponential form for easier calculation.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Exponential Functions

Formulas

log_b y = z is equivalent to y = b^z

Theorems

Exponential-Logarithmic Relationship

Suitable Grade Level

Grades 8-10