Algebra Examples

${(\frac{1}{3} m - 2)}^{3}$

Step 1

Combine $\frac{1}{3}$ and $m$ .

${(\frac{m}{3} - 2)}^{3}$

Step 2

Use the Binomial Theorem.

${(\frac{m}{3})}^{3} + 3 {(\frac{m}{3})}^{2} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3

Simplify each term.

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Step 3.1

Apply the product rule to $\frac{m}{3}$ .

$\frac{m^{3}}{3^{3}} + 3 {(\frac{m}{3})}^{2} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.2

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

$\frac{m^{3}}{27} + 3 {(\frac{m}{3})}^{2} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.3

Apply the product rule to $\frac{m}{3}$ .

$\frac{m^{3}}{27} + 3 \frac{m^{2}}{3^{2}} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.4

Cancel the common factor of $3$ .

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Step 3.4.1

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

$\frac{m^{3}}{27} + 3 \frac{m^{2}}{3 \cdot 3} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.4.2

Cancel the common factor.

$\frac{m^{3}}{27} + 3 \frac{m^{2}}{3 \cdot 3} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.4.3

Rewrite the expression.

$\frac{m^{3}}{27} + \frac{m^{2}}{3} \cdot - 2 + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.5

Combine $\frac{m^{2}}{3}$ and $- 2$ .

$\frac{m^{3}}{27} + \frac{m^{2} \cdot - 2}{3} + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.6

Move $- 2$ to the left of $m^{2}$ .

$\frac{m^{3}}{27} + \frac{- 2 \cdot m^{2}}{3} + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.7

Move the negative in front of the fraction.

$\frac{m^{3}}{27} - \frac{2 \cdot m^{2}}{3} + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.8

Cancel the common factor of $3$ .

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Step 3.8.1

Cancel the common factor.

$\frac{m^{3}}{27} - \frac{2 m^{2}}{3} + 3 \frac{m}{3} {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.8.2

Rewrite the expression.

$\frac{m^{3}}{27} - \frac{2 m^{2}}{3} + m {(- 2)}^{2} + {(- 2)}^{3}$

Step 3.9

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

$\frac{m^{3}}{27} - \frac{2 m^{2}}{3} + m \cdot 4 + {(- 2)}^{3}$

Step 3.10

Move $4$ to the left of $m$ .

$\frac{m^{3}}{27} - \frac{2 m^{2}}{3} + 4 \cdot m + {(- 2)}^{3}$

Step 3.11

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

$\frac{m^{3}}{27} - \frac{2 m^{2}}{3} + 4 m - 8$