Algebra Examples

$\log_{5} (3) + \log_{5} (6) - \log_{5} (9)$

Step 1

Use the product property of logarithms, $\log_{b} (x) + \log_{b} (y) = \log_{b} (x y)$ .

$\log_{5} (3 \cdot 6) - \log_{5} (9)$

Step 2

Use the quotient property of logarithms, $\log_{b} (x) - \log_{b} (y) = \log_{b} (\frac{x}{y})$ .

$\log_{5} (\frac{3 \cdot 6}{9})$

Step 3

Cancel the common factor of $3$ and $9$ .

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Step 3.1

Factor $3$ out of $3 \cdot 6$ .

$\log_{5} (\frac{3 (6)}{9})$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $3$ out of $9$ .

$\log_{5} (\frac{3 \cdot 6}{3 \cdot 3})$

Step 3.2.2

Cancel the common factor.

$\log_{5} (\frac{3 \cdot 6}{3 \cdot 3})$

Step 3.2.3

Rewrite the expression.

$\log_{5} (\frac{6}{3})$

Step 4

Cancel the common factor of $6$ and $3$ .

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Step 4.1

Factor $3$ out of $6$ .

$\log_{5} (\frac{3 \cdot 2}{3})$

Step 4.2

Cancel the common factors.

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Step 4.2.1

Factor $3$ out of $3$ .

$\log_{5} (\frac{3 \cdot 2}{3 (1)})$

Step 4.2.2

Cancel the common factor.

$\log_{5} (\frac{3 \cdot 2}{3 \cdot 1})$

Step 4.2.3

Rewrite the expression.

$\log_{5} (\frac{2}{1})$

Step 4.2.4

Divide $2$ by $1$ .

$\log_{5} (2)$

Step 5

The result can be shown in multiple forms.

Exact Form:

$\log_{5} (2)$

Decimal Form:

$0.43067655 \dots$