Precalculus Examples

$\frac{1}{3} \cdot \ln (x + 2) + \frac{1}{2} \cdot (\ln (x) x - \ln (x^{2} + 3 x + 2))$

Step 1

Simplify each term.

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Step 1.1

Simplify $\frac{1}{3} \ln (x + 2)$ by moving $\frac{1}{3}$ inside the logarithm.

$\ln ({(x + 2)}^{\frac{1}{3}}) + \frac{1}{2} \cdot (\ln (x) x - \ln (x^{2} + 3 x + 2))$

Step 1.2

Apply the distributive property.

$\ln ({(x + 2)}^{\frac{1}{3}}) + \frac{1}{2} (\ln (x) x) + \frac{1}{2} (- \ln (x^{2} + 3 x + 2))$

Step 1.3

Multiply $\frac{1}{2} (\ln (x) x)$ .

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Step 1.3.1

Reorder $\ln (x)$ and $\frac{1}{2}$ .

$\ln ({(x + 2)}^{\frac{1}{3}}) + \frac{1}{2} \ln (x) x + \frac{1}{2} (- \ln (x^{2} + 3 x + 2))$

Step 1.3.2

Simplify $\frac{1}{2} \ln (x)$ by moving $\frac{1}{2}$ inside the logarithm.

$\ln ({(x + 2)}^{\frac{1}{3}}) + \ln (x^{\frac{1}{2}}) x + \frac{1}{2} (- \ln (x^{2} + 3 x + 2))$

Step 1.4

Simplify $\frac{1}{2} \ln (x^{2} + 3 x + 2)$ by moving $\frac{1}{2}$ inside the logarithm.

$\ln ({(x + 2)}^{\frac{1}{3}}) + \ln (x^{\frac{1}{2}}) x - \ln ({(x^{2} + 3 x + 2)}^{\frac{1}{2}})$

Step 2

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

$\ln (x^{\frac{1}{2}}) x + \ln (\frac{{(x + 2)}^{\frac{1}{3}}}{{(x^{2} + 3 x + 2)}^{\frac{1}{2}}})$

Step 3

Reorder factors in $\ln (x^{\frac{1}{2}}) x + \ln (\frac{{(x + 2)}^{\frac{1}{3}}}{{(x^{2} + 3 x + 2)}^{\frac{1}{2}}})$ .

$x \ln (x^{\frac{1}{2}}) + \ln (\frac{{(x + 2)}^{\frac{1}{3}}}{{(x^{2} + 3 x + 2)}^{\frac{1}{2}}})$