Precalculus Examples

$\log (x) - 2 \log (y) + 2 \log (z)$

Step 1

Simplify each term.

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Step 1.1

Simplify $- 2 \log (y)$ by moving $2$ inside the logarithm.

$\log (x) - \log (y^{2}) + 2 \log (z)$

Step 1.2

Simplify $2 \log (z)$ by moving $2$ inside the logarithm.

$\log (x) - \log (y^{2}) + \log (z^{2})$

Step 2

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

$\log (\frac{x}{y^{2}}) + \log (z^{2})$

Step 3

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

$\log (\frac{x}{y^{2}} z^{2})$

Step 4

Combine $\frac{x}{y^{2}}$ and $z^{2}$ .

$\log (\frac{x z^{2}}{y^{2}})$