Math Problem Statement

Solve: 3logb(2)-logb(4)

Solution

To solve 3logb(2)logb(4)3 \log_b(2) - \log_b(4), we can use the properties of logarithms to simplify this expression.

Step-by-Step Solution

  1. Expand 3logb(2)3 \log_b(2) using the power rule of logarithms: 3logb(2)=logb(23)=logb(8)3 \log_b(2) = \log_b(2^3) = \log_b(8)

    So the expression becomes: logb(8)logb(4)\log_b(8) - \log_b(4)

  2. Apply the Quotient Rule for logarithms, which states that logb(x)logb(y)=logb(xy)\log_b(x) - \log_b(y) = \log_b\left(\frac{x}{y}\right): logb(8)logb(4)=logb(84)\log_b(8) - \log_b(4) = \log_b\left(\frac{8}{4}\right)

  3. Simplify the fraction inside the logarithm: 84=2\frac{8}{4} = 2 So the expression becomes: logb(2)\log_b(2)

Final Answer

3logb(2)logb(4)=logb(2)3 \log_b(2) - \log_b(4) = \log_b(2)

Would you like more details, or do you have any questions?


Here are some related questions you might find interesting:

  1. How would the solution change if the expression was 3logb(2)+logb(4)3 \log_b(2) + \log_b(4)?
  2. What is the result of 2logb(3)logb(9)2 \log_b(3) - \log_b(9)?
  3. How can you solve logb(x3)logb(x)\log_b(x^3) - \log_b(x)?
  4. How do the product, quotient, and power rules of logarithms apply to expressions involving multiple variables?
  5. How do you convert logarithmic expressions to exponential form?

Tip: Remember that using properties of logarithms, such as the power, product, and quotient rules, can greatly simplify complex expressions.

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Math Problem Analysis

Mathematical Concepts

Logarithmic Properties
Algebra

Formulas

Power Rule of Logarithms: a * log_b(x) = log_b(x^a)
Quotient Rule of Logarithms: log_b(x) - log_b(y) = log_b(x/y)

Theorems

Properties of Logarithms

Suitable Grade Level

Grades 9-10