QuestionAugust 27, 2025

Express as a sum of logarithms. log_(9)(9cdot 81) log_(9)(9cdot 81)= square

Express as a sum of logarithms. log_(9)(9cdot 81) log_(9)(9cdot 81)= square
Express as a sum of logarithms.
log_(9)(9cdot 81)
log_(9)(9cdot 81)= square

Solution
4.6(278 votes)

Answer

3 Explanation 1. Apply the Product Rule for Logarithms Use the product rule: ** \log_b(xy) = \log_b(x) + \log_b(y) **. Here, x = 9 and y = 81. 2. Simplify Each Logarithm Calculate \log_{9}(9) and \log_{9}(81). Since 9^1 = 9, \log_{9}(9) = 1. For 81, note that 81 = 9^2, so \log_{9}(81) = 2. 3. Combine the Results Add the results from Step 2: 1 + 2 = 3.

Explanation

1. Apply the Product Rule for Logarithms<br /> Use the product rule: **$ \log_b(xy) = \log_b(x) + \log_b(y) $**. Here, $x = 9$ and $y = 81$.<br /><br />2. Simplify Each Logarithm<br /> Calculate $\log_{9}(9)$ and $\log_{9}(81)$. Since $9^1 = 9$, $\log_{9}(9) = 1$. For $81$, note that $81 = 9^2$, so $\log_{9}(81) = 2$.<br /><br />3. Combine the Results<br /> Add the results from Step 2: $1 + 2 = 3$.
Click to rate: