Math Problem Statement

³(log) 18-³(log) 8+³(log) 4

Solution

We are given the expression:

log318log38+log34\log_3 18 - \log_3 8 + \log_3 4

To simplify this expression, we will apply the logarithmic properties:

  1. Logarithm subtraction: logbAlogbB=logb(AB)\log_b A - \log_b B = \log_b \left(\frac{A}{B}\right)
  2. Logarithm addition: logbA+logbB=logb(A×B)\log_b A + \log_b B = \log_b (A \times B)

Step 1: Apply the subtraction property.

log318log38=log3(188)=log3(94)\log_3 18 - \log_3 8 = \log_3 \left(\frac{18}{8}\right) = \log_3 \left(\frac{9}{4}\right)

Step 2: Apply the addition property.

log3(94)+log34=log3(94×4)\log_3 \left(\frac{9}{4}\right) + \log_3 4 = \log_3 \left(\frac{9}{4} \times 4\right)

Simplifying: log3(94×4)=log39\log_3 \left(\frac{9}{4} \times 4\right) = \log_3 9

Step 3: Simplify the result.

log39=2\log_3 9 = 2

Therefore, the simplified result is: 2\boxed{2}

Would you like further details or have any questions?

Here are five related questions for further exploration:

  1. How do you apply logarithmic properties to expressions with different bases?
  2. Can you solve log3(54)log3(6)\log_3(54) - \log_3(6)?
  3. What is the logarithmic form of 3x=273^x = 27?
  4. How do you simplify logb(An)\log_b (A^n) using logarithmic rules?
  5. What is the value of log525+log55\log_5 25 + \log_5 5?

Tip: When working with logarithms, always look for ways to use properties like product, quotient, or power rules to simplify complex expressions.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Algebra

Formulas

log_b A - log_b B = log_b (A / B)
log_b A + log_b B = log_b (A * B)
log_b (A^n) = n * log_b A

Theorems

Properties of Logarithms

Suitable Grade Level

Grades 9-11