Expand Logarithms Using The Product Property Worksheet

Algebra 2
Logarithms

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How Will This Worksheet on "Expand Logarithms Using the Product Property" Benefit Your Student's Learning?

  • Splitting logarithms using the product property makes tough math problems easier to handle.
  • Helps solve log equations by changing multiplications into easier additions.
  • Learning this technique aids in understanding advanced math, such as calculus.
  • Reduces errors and simplifies complex problems.
  • Enhances logical thinking and problem-solving skills by manipulating mathematical expressions.

How to Expand Logarithms Using the Product Property?

  • Start with a logarithm of a product, such as \(\log_b(xy)\).
  • Use the product property of logarithms, which states \(\log_b(xy) = \log_b(x) + \log_b(y)\).
  • Separate the logarithm into the sum of logarithms of each factor involved in the product.
  • Expand the logarithmic expression by writing it as a sum of simpler logarithmic terms, facilitating easier calculation and manipulation.

Solved Example

Q. Expand the logarithm. Assume all expressions exist and are well-defined. Write your answer as a sum or difference of common logarithms or multiples of common logarithms. The inside of each logarithm must be a distinct constant or variable. loguv \log uv
Solution:
  1. Identify Property: Identify the property of logarithm used to expand loguv\log uv. Product property is used to expand a product within a logarithm.
  2. Apply Property: Apply the product property to expand loguv\log uv. Product Property: logb(PQ)=logbP+logbQ\log_b (PQ) = \log_b P + \log_b Q\newline loguv=log(u)+log(v)\log uv = \log(u) + \log(v)
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About Worksheet

Algebra 2
Logarithms

Expanding logarithms using the product property means turning one `log` of a multiplication into several logs added together. For example, \(\log_b(xy)\) becomes \(\log_b(x) + \log_b(y)\). This makes tricky log problems easier to handle and solve because we break them into simpler parts. It's like taking a big math problem and splitting it into smaller, more manageable pieces.
Example: Expand \(\log_2(8x)\) using the product property of logarithms.

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