Math Problem Statement

Condense the expression to the logarithm of a single quantity. log x − 2 log y + 3 log z

Solution

To condense the expression logx2logy+3logz\log x - 2 \log y + 3 \log z into the logarithm of a single quantity, we can use the properties of logarithms:

  1. Power Rule: alogb=log(ba)a \log b = \log(b^a).
  2. Product Rule: loga+logb=log(ab)\log a + \log b = \log(ab).
  3. Quotient Rule: logalogb=log(ab)\log a - \log b = \log\left(\frac{a}{b}\right).

Steps:

  1. Apply the power rule to 2logy-2 \log y and 3logz3 \log z: logx2logy+3logz=logxlog(y2)+log(z3)\log x - 2 \log y + 3 \log z = \log x - \log(y^2) + \log(z^3)

  2. Now, use the product and quotient rules: logxlog(y2)+log(z3)=log(xz3y2)\log x - \log(y^2) + \log(z^3) = \log \left(\frac{x \cdot z^3}{y^2}\right)

Final Answer:

log(xz3y2)\log \left(\frac{x \cdot z^3}{y^2}\right)

Would you like a more detailed breakdown or have any questions?


Here are five related questions to practice:

  1. How would you condense 4loga+logb12logc4 \log a + \log b - \frac{1}{2} \log c?
  2. Simplify log(x2)+3log(y)log(z)\log(x^2) + 3 \log(y) - \log(z).
  3. Write log(a)log(b)+2log(c)\log(a) - \log(b) + 2 \log(c) as a single logarithm.
  4. If given 2logx5logy+logz2 \log x - 5 \log y + \log z, how would you condense it?
  5. How can you expand log(a2bc3)\log\left(\frac{a^2 b}{c^3}\right)?

Tip: Remember that applying the power rule to convert coefficients is often the first step in simplifying complex logarithmic expressions.

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Math Problem Analysis

Mathematical Concepts

Logarithms
Algebra

Formulas

Power Rule: a log b = log(b^a)
Product Rule: log a + log b = log(ab)
Quotient Rule: log a - log b = log(a/b)

Theorems

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Suitable Grade Level

Grades 9-12