Precalculus Examples

$\frac{1}{5} \cdot \log (3^{32}) - 2 \log (3^{x}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1

Simplify each term.

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Step 1.1

Raise $3$ to the power of $32$ .

$\frac{1}{5} \cdot \log (1853020188851840) - 2 \log (3^{x}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1.2

Simplify $\frac{1}{5} \log (1853020188851840)$ by moving $\frac{1}{5}$ inside the logarithm.

$\log (1853020188851840^{\frac{1}{5}}) - 2 \log (3^{x}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1.3

Simplify $- 2 \log (3^{x})$ by moving $2$ inside the logarithm.

$\log (1853020188851840^{\frac{1}{5}}) - \log ({(3^{x})}^{2}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1.4

Multiply the exponents in ${(3^{x})}^{2}$ .

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Step 1.4.1

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

$\log (1853020188851840^{\frac{1}{5}}) - \log (3^{x \cdot 2}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1.4.2

Move $2$ to the left of $x$ .

$\log (1853020188851840^{\frac{1}{5}}) - \log (3^{2 x}) + \frac{1}{2} \cdot \log (3^{y})$

Step 1.5

Simplify $\frac{1}{2} \log (3^{y})$ by moving $\frac{1}{2}$ inside the logarithm.

$\log (1853020188851840^{\frac{1}{5}}) - \log (3^{2 x}) + \log ({(3^{y})}^{\frac{1}{2}})$

Step 1.6

Multiply the exponents in ${(3^{y})}^{\frac{1}{2}}$ .

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Step 1.6.1

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

$\log (1853020188851840^{\frac{1}{5}}) - \log (3^{2 x}) + \log (3^{y \frac{1}{2}})$

Step 1.6.2

Combine $y$ and $\frac{1}{2}$ .

$\log (1853020188851840^{\frac{1}{5}}) - \log (3^{2 x}) + \log (3^{\frac{y}{2}})$

Step 2

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

$\log (\frac{1853020188851840^{\frac{1}{5}}}{3^{2 x}}) + \log (3^{\frac{y}{2}})$

Step 3

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

$\log (\frac{1853020188851840^{\frac{1}{5}}}{3^{2 x}} \cdot 3^{\frac{y}{2}})$

Step 4

Combine $\frac{1853020188851840^{\frac{1}{5}}}{3^{2 x}}$ and $3^{\frac{y}{2}}$ .

$\log (\frac{1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2}}}{3^{2 x}})$

Step 5

Factor $3^{2 x}$ out of $1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2}}$ .

$\log (\frac{3^{2 x} (1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x})}{3^{2 x}})$

Step 6

Cancel the common factors.

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Step 6.1

Multiply by $1$ .

$\log (\frac{3^{2 x} (1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x})}{3^{2 x} \cdot 1})$

Step 6.2

Cancel the common factor.

$\log (\frac{3^{2 x} (1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x})}{3^{2 x} \cdot 1})$

Step 6.3

Rewrite the expression.

$\log (\frac{1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x}}{1})$

Step 6.4

Divide $1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x}$ by $1$ .

$\log (1853020188851840^{\frac{1}{5}} \cdot 3^{\frac{y}{2} - 2 x})$