Algebra Examples

$\frac{1}{3} (\log_{5} (8) + \log_{5} (27)) - \log_{5} (3)$

Step 1

Simplify each term.

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Step 1.1

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

$\frac{1}{3} \cdot \log_{5} (8 \cdot 27) - \log_{5} (3)$

Step 1.2

Multiply $8$ by $27$ .

$\frac{1}{3} \cdot \log_{5} (216) - \log_{5} (3)$

Step 1.3

Simplify $\frac{1}{3} \log_{5} (216)$ by moving $\frac{1}{3}$ inside the logarithm.

$\log_{5} (216^{\frac{1}{3}}) - \log_{5} (3)$

Step 1.4

Rewrite $216$ as $6^{3}$ .

$\log_{5} ({(6^{3})}^{\frac{1}{3}}) - \log_{5} (3)$

Step 1.5

Apply the power rule and multiply exponents, ${(a^{m})}^{n} = a^{m n}$ .

$\log_{5} (6^{3 (\frac{1}{3})}) - \log_{5} (3)$

Step 1.6

Cancel the common factor of $3$ .

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Step 1.6.1

Cancel the common factor.

$\log_{5} (6^{3 (\frac{1}{3})}) - \log_{5} (3)$

Step 1.6.2

Rewrite the expression.

$\log_{5} (6^{1}) - \log_{5} (3)$

Step 1.7

Evaluate the exponent.

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

Step 2

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

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

Step 3

Divide $6$ by $3$ .

$\log_{5} (2)$

Step 4

The result can be shown in multiple forms.

Exact Form:

$\log_{5} (2)$

Decimal Form:

$0.43067655 \dots$