Algebra Examples

$(m n + 1) (m^{2} n - 1) (m n^{2} + 2)$

Step 1

Expand $(m n + 1) (m^{2} n - 1)$ using the FOIL Method.

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Step 1.1

Apply the distributive property.

$(m n (m^{2} n - 1) + 1 (m^{2} n - 1)) (m n^{2} + 2)$

Step 1.2

Apply the distributive property.

$(m n (m^{2} n) + m n \cdot - 1 + 1 (m^{2} n - 1)) (m n^{2} + 2)$

Step 1.3

Apply the distributive property.

$(m n (m^{2} n) + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2

Simplify each term.

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Step 2.1

Multiply $m$ by $m^{2}$ by adding the exponents.

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Step 2.1.1

Move $m^{2}$ .

$(m^{2} m n \cdot n + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.1.2

Multiply $m^{2}$ by $m$ .

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Step 2.1.2.1

Raise $m$ to the power of $1$ .

$(m^{2} m^{1} n \cdot n + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.1.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$(m^{2 + 1} n \cdot n + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.1.3

Add $2$ and $1$ .

$(m^{3} n \cdot n + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.2

Multiply $n$ by $n$ by adding the exponents.

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Step 2.2.1

Move $n$ .

$(m^{3} (n \cdot n) + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.2.2

Multiply $n$ by $n$ .

$(m^{3} n^{2} + m n \cdot - 1 + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.3

Move $- 1$ to the left of $m n$ .

$(m^{3} n^{2} - 1 \cdot (m n) + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.4

Rewrite $- 1 (m n)$ as $- (m n)$ .

$(m^{3} n^{2} - (m n) + 1 (m^{2} n) + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.5

Multiply $m^{2} n$ by $1$ .

$(m^{3} n^{2} - m n + m^{2} n + 1 \cdot - 1) (m n^{2} + 2)$

Step 2.6

Multiply $- 1$ by $1$ .

$(m^{3} n^{2} - m n + m^{2} n - 1) (m n^{2} + 2)$

Step 3

Expand $(m^{3} n^{2} - m n + m^{2} n - 1) (m n^{2} + 2)$ by multiplying each term in the first expression by each term in the second expression.

$m^{3} n^{2} (m n^{2}) + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4

Simplify each term.

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Step 4.1

Multiply $m^{3}$ by $m$ by adding the exponents.

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Step 4.1.1

Move $m$ .

$m \cdot m^{3} n^{2} n^{2} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.1.2

Multiply $m$ by $m^{3}$ .

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Step 4.1.2.1

Raise $m$ to the power of $1$ .

$m^{1} m^{3} n^{2} n^{2} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.1.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$m^{1 + 3} n^{2} n^{2} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.1.3

Add $1$ and $3$ .

$m^{4} n^{2} n^{2} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.2

Multiply $n^{2}$ by $n^{2}$ by adding the exponents.

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Step 4.2.1

Move $n^{2}$ .

$m^{4} (n^{2} n^{2}) + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$m^{4} n^{2 + 2} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.2.3

Add $2$ and $2$ .

$m^{4} n^{4} + m^{3} n^{2} \cdot 2 - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.3

Move $2$ to the left of $m^{3} n^{2}$ .

$m^{4} n^{4} + 2 \cdot (m^{3} n^{2}) - m n (m n^{2}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.4

Multiply $m$ by $m$ by adding the exponents.

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Step 4.4.1

Move $m$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - (m \cdot m) n \cdot n^{2} - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.4.2

Multiply $m$ by $m$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n \cdot n^{2} - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.5

Multiply $n$ by $n^{2}$ by adding the exponents.

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Step 4.5.1

Move $n^{2}$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} (n^{2} n) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.5.2

Multiply $n^{2}$ by $n$ .

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Step 4.5.2.1

Raise $n$ to the power of $1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} (n^{2} n^{1}) - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.5.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{2 + 1} - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.5.3

Add $2$ and $1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - m n \cdot 2 + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.6

Multiply $2$ by $- 1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{2} n (m n^{2}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.7

Multiply $m^{2}$ by $m$ by adding the exponents.

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Step 4.7.1

Move $m$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m \cdot m^{2} n \cdot n^{2} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.7.2

Multiply $m$ by $m^{2}$ .

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Step 4.7.2.1

Raise $m$ to the power of $1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{1} m^{2} n \cdot n^{2} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.7.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{1 + 2} n \cdot n^{2} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.7.3

Add $1$ and $2$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n \cdot n^{2} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.8

Multiply $n$ by $n^{2}$ by adding the exponents.

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Step 4.8.1

Move $n^{2}$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} (n^{2} n) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.8.2

Multiply $n^{2}$ by $n$ .

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Step 4.8.2.1

Raise $n$ to the power of $1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} (n^{2} n^{1}) + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.8.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n^{2 + 1} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.8.3

Add $2$ and $1$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n^{3} + m^{2} n \cdot 2 - 1 (m n^{2}) - 1 \cdot 2$

Step 4.9

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

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n^{3} + 2 \cdot (m^{2} n) - 1 (m n^{2}) - 1 \cdot 2$

Step 4.10

Rewrite $- 1 (m n^{2})$ as $- (m n^{2})$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n^{3} + 2 m^{2} n - (m n^{2}) - 1 \cdot 2$

Step 4.11

Multiply $- 1$ by $2$ .

$m^{4} n^{4} + 2 m^{3} n^{2} - m^{2} n^{3} - 2 m n + m^{3} n^{3} + 2 m^{2} n - m n^{2} - 2$