Algebra Examples

$\frac{x - 1}{x + 2 - \frac{x^{2} + 2}{x - \frac{x - 2}{x + 1}}}$

Step 1

Multiply the numerator and denominator of the fraction by $x - \frac{x - 2}{x + 1}$ .

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Step 1.1

Multiply $\frac{x - 1}{x + 2 - \frac{x^{2} + 2}{x - \frac{x - 2}{x + 1}}}$ by $\frac{x - \frac{x - 2}{x + 1}}{x - \frac{x - 2}{x + 1}}$ .

$\frac{x - \frac{x - 2}{x + 1}}{x - \frac{x - 2}{x + 1}} \cdot \frac{x - 1}{x + 2 - \frac{x^{2} + 2}{x - \frac{x - 2}{x + 1}}}$

Step 1.2

Combine.

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

Step 2

Apply the distributive property.

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

Step 3

Simplify the denominator.

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Step 3.1

To write $x$ as a fraction with a common denominator, multiply by $\frac{x + 1}{x + 1}$ .

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

Step 3.2

Combine the numerators over the common denominator.

Step 3.3

Rewrite $\frac{x (x + 1) - (x - 2)}{x + 1}$ in a factored form.

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Step 3.3.1

Apply the distributive property.

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

Step 3.3.2

Multiply $x$ by $x$ .

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

Step 3.3.3

Multiply $x$ by $1$ .

Step 3.3.4

Apply the distributive property.

Step 3.3.5

Multiply $- 1$ by $- 2$ .

Step 3.3.6

Subtract $x$ from $x$ .

Step 3.3.7

Add $x^{2}$ and $0$ .

Step 4

Simplify the numerator.

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Step 4.1

Factor $x - \frac{x - 2}{x + 1}$ out of $(x - \frac{x - 2}{x + 1}) x + (x - \frac{x - 2}{x + 1}) \cdot - 1$ .

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Step 4.1.1

Reorder the expression.

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Step 4.1.1.1

Reorder $x - \frac{x - 2}{x + 1}$ and $x$ .

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

Step 4.1.1.2

Reorder $x - \frac{x - 2}{x + 1}$ and $- 1$ .

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

Step 4.1.2

Factor $x - \frac{x - 2}{x + 1}$ out of $x (x - \frac{x - 2}{x + 1})$ .

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

Step 4.1.3

Factor $x - \frac{x - 2}{x + 1}$ out of $- 1 \cdot (x - \frac{x - 2}{x + 1})$ .

Step 4.1.4

Factor $x - \frac{x - 2}{x + 1}$ out of $(x - \frac{x - 2}{x + 1}) x + (x - \frac{x - 2}{x + 1}) \cdot - 1$ .

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

Step 4.2

To write $x$ as a fraction with a common denominator, multiply by $\frac{x + 1}{x + 1}$ .

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

Step 4.3

Combine the numerators over the common denominator.

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

Step 4.4

Rewrite $\frac{x (x + 1) - (x - 2)}{x + 1}$ in a factored form.

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Step 4.4.1

Apply the distributive property.

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

Step 4.4.2

Multiply $x$ by $x$ .

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

Step 4.4.3

Multiply $x$ by $1$ .

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

Step 4.4.4

Apply the distributive property.

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

Step 4.4.5

Multiply $- 1$ by $- 2$ .

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

Step 4.4.6

Subtract $x$ from $x$ .

$\frac{\frac{x^{2} + 0 + 2}{x + 1} (x - 1)}{(x - \frac{x - 2}{x + 1}) x + (x - \frac{x - 2}{x + 1}) \cdot 2 + (x - \frac{x - 2}{x + 1}) (- \frac{x^{2} + 2}{\frac{x^{2} + 2}{x + 1}})}$

Step 4.4.7

Add $x^{2}$ and $0$ .

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

Step 5

Simplify the denominator.

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Step 5.1

Factor $x - \frac{x - 2}{x + 1}$ out of $(x - \frac{x - 2}{x + 1}) x + (x - \frac{x - 2}{x + 1}) \cdot 2 + (x - \frac{x - 2}{x + 1}) (- \frac{x^{2} + 2}{\frac{x^{2} + 2}{x + 1}})$ .

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Step 5.1.1

Reorder the expression.

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Step 5.1.1.1

Reorder $x - \frac{x - 2}{x + 1}$ and $x$ .

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

Step 5.1.1.2

Reorder $x - \frac{x - 2}{x + 1}$ and $2$ .

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

Step 5.1.1.3

Reorder $x - \frac{x - 2}{x + 1}$ and $- 1$ .

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

Step 5.1.2

Factor $x - \frac{x - 2}{x + 1}$ out of $x (x - \frac{x - 2}{x + 1})$ .

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

Step 5.1.3

Factor $x - \frac{x - 2}{x + 1}$ out of $2 \cdot (x - \frac{x - 2}{x + 1})$ .

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

Step 5.1.4

Factor $x - \frac{x - 2}{x + 1}$ out of $- 1 \cdot (x - \frac{x - 2}{x + 1}) \frac{x^{2} + 2}{\frac{x^{2} + 2}{x + 1}}$ .

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

Step 5.1.5

Factor $x - \frac{x - 2}{x + 1}$ out of $(x - \frac{x - 2}{x + 1}) x + (x - \frac{x - 2}{x + 1}) \cdot 2$ .

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

Step 5.1.6

Factor $x - \frac{x - 2}{x + 1}$ out of $(x - \frac{x - 2}{x + 1}) (x + 2) + (x - \frac{x - 2}{x + 1}) (- \frac{x^{2} + 2}{\frac{x^{2} + 2}{x + 1}})$ .

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

Step 5.2

To write $x$ as a fraction with a common denominator, multiply by $\frac{x + 1}{x + 1}$ .

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

Step 5.3

Combine the numerators over the common denominator.

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

Step 5.4

Rewrite $\frac{x (x + 1) - (x - 2)}{x + 1}$ in a factored form.

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Step 5.4.1

Apply the distributive property.

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

Step 5.4.2

Multiply $x$ by $x$ .

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

Step 5.4.3

Multiply $x$ by $1$ .

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

Step 5.4.4

Apply the distributive property.

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

Step 5.4.5

Multiply $- 1$ by $- 2$ .

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

Step 5.4.6

Subtract $x$ from $x$ .

$\frac{\frac{x^{2} + 2}{x + 1} (x - 1)}{\frac{x^{2} + 0 + 2}{x + 1} (x + 2 - \frac{x^{2} + 2}{\frac{x^{2} + 2}{x + 1}})}$

Step 5.4.7

Add $x^{2}$ and $0$ .

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

Step 5.5

Multiply the numerator by the reciprocal of the denominator.

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

Step 5.6

Cancel the common factor of $x^{2} + 2$ .

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Step 5.6.1

Cancel the common factor.

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

Step 5.6.2

Rewrite the expression.

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

Step 5.7

Apply the distributive property.

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

Step 5.8

Multiply $- 1$ by $1$ .

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

Step 5.9

Subtract $x$ from $x$ .

$\frac{\frac{x^{2} + 2}{x + 1} (x - 1)}{\frac{x^{2} + 2}{x + 1} (0 + 2 - 1)}$

Step 5.10

Add $0$ and $2$ .

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

Step 5.11

Subtract $1$ from $2$ .

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

Step 6

Reduce the expression by cancelling the common factors.

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Step 6.1

Multiply $\frac{x^{2} + 2}{x + 1}$ by $1$ .

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

Step 6.2

Cancel the common factor of $\frac{x^{2} + 2}{x + 1}$ .

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Step 6.2.1

Cancel the common factor.

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

Step 6.2.2

Divide $x - 1$ by $1$ .

$x - 1$