Math Problem Statement

Logx5-3logx2+logx4

Solution

To simplify the expression logx53logx2+logx4\log_x{5} - 3\log_x{2} + \log_x{4}, we can apply the logarithmic properties. Here’s the step-by-step solution:

1. Apply the logarithmic property for subtraction:

logxalogxb=logx(ab)\log_x{a} - \log_x{b} = \log_x{\left(\frac{a}{b}\right)}

First, apply this property to the first two terms: logx53logx2=logx(523)=logx(58)\log_x{5} - 3\log_x{2} = \log_x{\left(\frac{5}{2^3}\right)} = \log_x{\left(\frac{5}{8}\right)}

2. Use the power rule of logarithms:

alogxb=logxbaa\log_x{b} = \log_x{b^a} This has already been applied to the term 3logx23\log_x{2} to get 23=82^3 = 8.

3. Add the third term logx4\log_x{4} using the logarithmic property of addition:

logx(58)+logx4=logx(584)\log_x{\left(\frac{5}{8}\right)} + \log_x{4} = \log_x{\left(\frac{5}{8} \cdot 4\right)}

4. Simplify the expression:

584=52\frac{5}{8} \cdot 4 = \frac{5}{2}

Thus, the simplified expression is: logx(52)\log_x{\left(\frac{5}{2}\right)}

Would you like more details on any part of this explanation?

5 Related Questions:

  1. What are the basic properties of logarithms?
  2. How does the power rule of logarithms work?
  3. Can logarithms with different bases be simplified?
  4. How do you solve logarithmic equations?
  5. What is the change of base formula for logarithms?

Tip: Always remember to use the logarithmic properties (product, quotient, and power rules) when simplifying complex logarithmic expressions.

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Math Problem Analysis

Mathematical Concepts

Logarithmic Properties
Simplification of Logarithmic Expressions

Formulas

Logarithmic Quotient Rule: \( \log_x{a} - \log_x{b} = \log_x{\left(\frac{a}{b}\right)} \)
Logarithmic Power Rule: \( a\log_x{b} = \log_x{b^a} \)
Logarithmic Product Rule: \( \log_x{a} + \log_x{b} = \log_x{\left(a \cdot b\right)} \)

Theorems

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Suitable Grade Level

Grades 10-12