Precalculus Examples

$2 \log_{2} (x) + 4 \log (2) y - \frac{5}{4} \cdot (\log (2) (3 x - 2)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1

Simplify each term.

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Step 1.1

Simplify $2 \log_{2} (x)$ by moving $2$ inside the logarithm.

$\log_{2} (x^{2}) + 4 \log (2) y - \frac{5}{4} \cdot (\log (2) (3 x - 2)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.2

Simplify $4 \log (2)$ by moving $4$ inside the logarithm.

$\log_{2} (x^{2}) + \log (2^{4}) y - \frac{5}{4} \cdot (\log (2) (3 x - 2)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.3

Raise $2$ to the power of $4$ .

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (2) (3 x - 2)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.4

Apply the distributive property.

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (2) (3 x) + \log (2) \cdot - 2) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.5

Simplify $3 \log (2)$ by moving $3$ inside the logarithm.

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (2^{3}) x + \log (2) \cdot - 2) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.6

Multiply $\log (2) \cdot - 2$ .

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Step 1.6.1

Reorder $\log (2)$ and $- 2$ .

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (2^{3}) x - 2 \cdot \log (2)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.6.2

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

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (2^{3}) x - \log (2^{2})) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.7

Simplify each term.

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Step 1.7.1

Raise $2$ to the power of $3$ .

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (8) x - \log (2^{2})) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.7.2

Raise $2$ to the power of $2$ .

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} \cdot (\log (8) x - \log (4)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.8

Apply the distributive property.

$\log_{2} (x^{2}) + \log (16) y - \frac{5}{4} (\log (8) x) - \frac{5}{4} (- \log (4)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.9

Multiply $- \frac{5}{4} (\log (8) x)$ .

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Step 1.9.1

Reorder $\log (8)$ and $\frac{5}{4}$ .

$\log_{2} (x^{2}) + \log (16) y - (\frac{5}{4} \log (8)) x - \frac{5}{4} (- \log (4)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.9.2

Simplify $\frac{5}{4} \log (8)$ by moving $\frac{5}{4}$ inside the logarithm.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x - \frac{5}{4} (- \log (4)) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.10

Multiply $- \frac{5}{4} (- \log (4))$ .

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Step 1.10.1

Multiply $- 1$ by $- 1$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + 1 (\frac{5}{4}) \log (4) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.10.2

Multiply $\frac{5}{4}$ by $1$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \frac{5}{4} \log (4) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.10.3

Simplify $\frac{5}{4} \log (4)$ by moving $\frac{5}{4}$ inside the logarithm.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y + 1))$

Step 1.11

Apply the distributive property.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2) (2 y) + \log (2) \cdot 1)$

Step 1.12

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

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2^{2}) y + \log (2) \cdot 1)$

Step 1.13

Multiply $\log (2)$ by $1$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} \cdot (\log (2^{2}) y + \log (2))$

Step 1.14

Raise $2$ to the power of $2$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} \cdot (\log (4) y + \log (2))$

Step 1.15

Apply the distributive property.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \frac{1}{4} (\log (4) y) - \frac{1}{4} \log (2)$

Step 1.16

Multiply $- \frac{1}{4} (\log (4) y)$ .

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Step 1.16.1

Reorder $\log (4)$ and $\frac{1}{4}$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - (\frac{1}{4} \log (4)) y - \frac{1}{4} \log (2)$

Step 1.16.2

Simplify $\frac{1}{4} \log (4)$ by moving $\frac{1}{4}$ inside the logarithm.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \log (4^{\frac{1}{4}}) y - \frac{1}{4} \log (2)$

Step 1.17

Multiply $- \frac{1}{4} \log (2)$ .

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Step 1.17.1

Reorder $\log (2)$ and $\frac{1}{4}$ .

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \log (4^{\frac{1}{4}}) y - (\frac{1}{4} \log (2))$

Step 1.17.2

Simplify $\frac{1}{4} \log (2)$ by moving $\frac{1}{4}$ inside the logarithm.

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \log (4^{\frac{5}{4}}) + \frac{3}{2} - \log (4^{\frac{1}{4}}) y - \log (2^{\frac{1}{4}})$

Step 2

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

$\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \frac{3}{2} - \log (4^{\frac{1}{4}}) y + \log (\frac{4^{\frac{5}{4}}}{2^{\frac{1}{4}}})$

Step 3

Reorder factors in $\log_{2} (x^{2}) + \log (16) y - \log (8^{\frac{5}{4}}) x + \frac{3}{2} - \log (4^{\frac{1}{4}}) y + \log (\frac{4^{\frac{5}{4}}}{2^{\frac{1}{4}}})$ .

$\log_{2} (x^{2}) + y \log (16) - x \log (8^{\frac{5}{4}}) + \frac{3}{2} - y \log (4^{\frac{1}{4}}) + \log (\frac{4^{\frac{5}{4}}}{2^{\frac{1}{4}}})$