Calculus Examples

$x^{3} - \frac{7}{2} x^{2} - \frac{33}{2} x + 9 = \frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$

Step 1

Simplify each term.

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Step 1.1

Combine $x^{2}$ and $\frac{7}{2}$ .

$x^{3} - \frac{x^{2} \cdot 7}{2} - \frac{33}{2} x + 9 = \frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$

Step 1.2

Move $7$ to the left of $x^{2}$ .

$x^{3} - \frac{7 \cdot x^{2}}{2} - \frac{33}{2} x + 9 = \frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$

Step 1.3

Combine $x$ and $\frac{33}{2}$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{x \cdot 33}{2} + 9 = \frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$

Step 1.4

Move $33$ to the left of $x$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = \frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$

Step 2

Simplify $\frac{1}{2} (2 x^{3} - 7 x^{2} - 33 x + 18)$ .

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Step 2.1

Apply the distributive property.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = \frac{1}{2} (2 x^{3}) + \frac{1}{2} (- 7 x^{2}) + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2

Simplify.

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Step 2.2.1

Cancel the common factor of $2$ .

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Step 2.2.1.1

Factor $2$ out of $2 x^{3}$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = \frac{1}{2} (2 (x^{3})) + \frac{1}{2} (- 7 x^{2}) + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2.1.2

Cancel the common factor.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = \frac{1}{2} (2 x^{3}) + \frac{1}{2} (- 7 x^{2}) + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2.1.3

Rewrite the expression.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{1}{2} (- 7 x^{2}) + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2.2

Multiply $\frac{1}{2} (- 7 x^{2})$ .

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Step 2.2.2.1

Combine $- 7$ and $\frac{1}{2}$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7}{2} x^{2} + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2.2.2

Combine $\frac{- 7}{2}$ and $x^{2}$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{1}{2} (- 33 x) + \frac{1}{2} \cdot 18$

Step 2.2.3

Multiply $\frac{1}{2} (- 33 x)$ .

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Step 2.2.3.1

Combine $- 33$ and $\frac{1}{2}$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{- 33}{2} x + \frac{1}{2} \cdot 18$

Step 2.2.3.2

Combine $\frac{- 33}{2}$ and $x$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{- 33 x}{2} + \frac{1}{2} \cdot 18$

Step 2.2.4

Cancel the common factor of $2$ .

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Step 2.2.4.1

Factor $2$ out of $18$ .

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{- 33 x}{2} + \frac{1}{2} \cdot (2 (9))$

Step 2.2.4.2

Cancel the common factor.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{- 33 x}{2} + \frac{1}{2} \cdot (2 \cdot 9)$

Step 2.2.4.3

Rewrite the expression.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} + \frac{- 7 x^{2}}{2} + \frac{- 33 x}{2} + 9$

Step 2.3

Simplify each term.

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Step 2.3.1

Move the negative in front of the fraction.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} - \frac{7 x^{2}}{2} + \frac{- 33 x}{2} + 9$

Step 2.3.2

Move the negative in front of the fraction.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 = x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9$

Step 3

Move all terms containing $x$ to the left side of the equation.

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Step 3.1

Subtract $x^{3}$ from both sides of the equation.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 - x^{3} = - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9$

Step 3.2

Add $\frac{7 x^{2}}{2}$ to both sides of the equation.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 - x^{3} + \frac{7 x^{2}}{2} = - \frac{33 x}{2} + 9$

Step 3.3

Add $\frac{33 x}{2}$ to both sides of the equation.

$x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 - x^{3} + \frac{7 x^{2}}{2} + \frac{33 x}{2} = 9$

Step 3.4

Combine the opposite terms in $x^{3} - \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 - x^{3} + \frac{7 x^{2}}{2} + \frac{33 x}{2}$ .

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Step 3.4.1

Subtract $x^{3}$ from $x^{3}$ .

$- \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 + 0 + \frac{7 x^{2}}{2} + \frac{33 x}{2} = 9$

Step 3.4.2

Add $- \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9$ and $0$ .

$- \frac{7 x^{2}}{2} - \frac{33 x}{2} + 9 + \frac{7 x^{2}}{2} + \frac{33 x}{2} = 9$

Step 3.4.3

Add $- \frac{7 x^{2}}{2}$ and $\frac{7 x^{2}}{2}$ .

$- \frac{33 x}{2} + 9 + 0 + \frac{33 x}{2} = 9$

Step 3.4.4

Add $- \frac{33 x}{2} + 9$ and $0$ .

$- \frac{33 x}{2} + 9 + \frac{33 x}{2} = 9$

Step 3.4.5

Add $- \frac{33 x}{2}$ and $\frac{33 x}{2}$ .

$0 + 9 = 9$

Step 3.4.6

Add $0$ and $9$ .

$9 = 9$

Step 4

Since $9 = 9$ , the equation will always be true.

Always true