Algebra Examples

$(- 2 x^{2} y z^{2} + 3 x^{2} y) \cdot (- 5 y^{2} z^{3} - 4 z) \cdot (x y^{2} + z)$

Step 1

Expand $(- 2 x^{2} y z^{2} + 3 x^{2} y) (- 5 y^{2} z^{3} - 4 z)$ using the FOIL Method.

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Step 1.1

Apply the distributive property.

$(- 2 x^{2} y z^{2} (- 5 y^{2} z^{3} - 4 z) + 3 x^{2} y (- 5 y^{2} z^{3} - 4 z)) \cdot (x y^{2} + z)$

Step 1.2

Apply the distributive property.

$(- 2 x^{2} y z^{2} (- 5 y^{2} z^{3}) - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3} - 4 z)) \cdot (x y^{2} + z)$

Step 1.3

Apply the distributive property.

$(- 2 x^{2} y z^{2} (- 5 y^{2} z^{3}) - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2

Simplify each term.

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Step 2.1

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

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Step 2.1.1

Move $y^{2}$ .

$(- 2 x^{2} (y^{2} y) z^{2} (- 5 z^{3}) - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.1.2

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

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Step 2.1.2.1

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

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

Step 2.1.2.2

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

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

Step 2.1.3

Add $2$ and $1$ .

$(- 2 x^{2} y^{3} z^{2} (- 5 z^{3}) - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.2

Multiply $z^{2}$ by $z^{3}$ by adding the exponents.

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Step 2.2.1

Move $z^{3}$ .

$(- 2 x^{2} y^{3} (z^{3} z^{2}) \cdot - 5 - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.2.2

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

$(- 2 x^{2} y^{3} z^{3 + 2} \cdot - 5 - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.2.3

Add $3$ and $2$ .

$(- 2 x^{2} y^{3} z^{5} \cdot - 5 - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.3

Multiply $- 5$ by $- 2$ .

$(10 x^{2} y^{3} z^{5} - 2 x^{2} y z^{2} (- 4 z) + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.4

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

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Step 2.4.1

Move $z$ .

$(10 x^{2} y^{3} z^{5} - 2 x^{2} y (z \cdot z^{2}) \cdot - 4 + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.4.2

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

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Step 2.4.2.1

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

$(10 x^{2} y^{3} z^{5} - 2 x^{2} y (z^{1} z^{2}) \cdot - 4 + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.4.2.2

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

$(10 x^{2} y^{3} z^{5} - 2 x^{2} y z^{1 + 2} \cdot - 4 + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.4.3

Add $1$ and $2$ .

$(10 x^{2} y^{3} z^{5} - 2 x^{2} y z^{3} \cdot - 4 + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.5

Multiply $- 4$ by $- 2$ .

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} + 3 x^{2} y (- 5 y^{2} z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.6

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

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Step 2.6.1

Move $y^{2}$ .

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} + 3 x^{2} (y^{2} y) (- 5 z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.6.2

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

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Step 2.6.2.1

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

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} + 3 x^{2} (y^{2} y^{1}) (- 5 z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.6.2.2

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

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} + 3 x^{2} y^{2 + 1} (- 5 z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.6.3

Add $2$ and $1$ .

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} + 3 x^{2} y^{3} (- 5 z^{3}) + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.7

Multiply $- 5$ by $3$ .

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} - 15 x^{2} y^{3} z^{3} + 3 x^{2} y (- 4 z)) \cdot (x y^{2} + z)$

Step 2.8

Multiply $- 4$ by $3$ .

$(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} - 15 x^{2} y^{3} z^{3} - 12 x^{2} y z) \cdot (x y^{2} + z)$

Step 3

Expand $(10 x^{2} y^{3} z^{5} + 8 x^{2} y z^{3} - 15 x^{2} y^{3} z^{3} - 12 x^{2} y z) (x y^{2} + z)$ by multiplying each term in the first expression by each term in the second expression.

$10 x^{2} y^{3} z^{5} (x y^{2}) + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4

Simplify each term.

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Step 4.1

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

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Step 4.1.1

Move $x$ .

$10 (x \cdot x^{2}) y^{3} z^{5} y^{2} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.1.2

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

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Step 4.1.2.1

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

$10 (x^{1} x^{2}) y^{3} z^{5} y^{2} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.1.2.2

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

$10 x^{1 + 2} y^{3} z^{5} y^{2} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.1.3

Add $1$ and $2$ .

$10 x^{3} y^{3} z^{5} y^{2} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.2

Multiply $y^{3}$ by $y^{2}$ by adding the exponents.

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Step 4.2.1

Move $y^{2}$ .

$10 x^{3} (y^{2} y^{3}) z^{5} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.2.2

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

$10 x^{3} y^{2 + 3} z^{5} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.2.3

Add $2$ and $3$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{5} z + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.3

Multiply $z^{5}$ by $z$ by adding the exponents.

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Step 4.3.1

Move $z$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} (z \cdot z^{5}) + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.3.2

Multiply $z$ by $z^{5}$ .

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Step 4.3.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} (z^{1} z^{5}) + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.3.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{1 + 5} + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.3.3

Add $1$ and $5$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{2} y z^{3} (x y^{2}) + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.4

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

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Step 4.4.1

Move $x$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 (x \cdot x^{2}) y z^{3} y^{2} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.4.2

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

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Step 4.4.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 (x^{1} x^{2}) y z^{3} y^{2} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.4.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{1 + 2} y z^{3} y^{2} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.4.3

Add $1$ and $2$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y z^{3} y^{2} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.5

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

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Step 4.5.1

Move $y^{2}$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} (y^{2} y) z^{3} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.5.2

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

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Step 4.5.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} (y^{2} y^{1}) z^{3} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.5.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{2 + 1} z^{3} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.5.3

Add $2$ and $1$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{3} z - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.6

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

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Step 4.6.1

Move $z$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y (z \cdot z^{3}) - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.6.2

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

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Step 4.6.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y (z^{1} z^{3}) - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.6.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{1 + 3} - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.6.3

Add $1$ and $3$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{2} y^{3} z^{3} (x y^{2}) - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.7

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

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Step 4.7.1

Move $x$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 (x \cdot x^{2}) y^{3} z^{3} y^{2} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.7.2

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

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Step 4.7.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 (x^{1} x^{2}) y^{3} z^{3} y^{2} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.7.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{1 + 2} y^{3} z^{3} y^{2} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.7.3

Add $1$ and $2$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{3} z^{3} y^{2} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.8

Multiply $y^{3}$ by $y^{2}$ by adding the exponents.

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Step 4.8.1

Move $y^{2}$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} (y^{2} y^{3}) z^{3} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.8.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{2 + 3} z^{3} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.8.3

Add $2$ and $3$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{3} z - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.9

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

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Step 4.9.1

Move $z$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} (z \cdot z^{3}) - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.9.2

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

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Step 4.9.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} (z^{1} z^{3}) - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.9.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{1 + 3} - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.9.3

Add $1$ and $3$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{2} y z (x y^{2}) - 12 x^{2} y z \cdot z$

Step 4.10

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

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Step 4.10.1

Move $x$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 (x \cdot x^{2}) y z y^{2} - 12 x^{2} y z \cdot z$

Step 4.10.2

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

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Step 4.10.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 (x^{1} x^{2}) y z y^{2} - 12 x^{2} y z \cdot z$

Step 4.10.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{1 + 2} y z y^{2} - 12 x^{2} y z \cdot z$

Step 4.10.3

Add $1$ and $2$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} y z y^{2} - 12 x^{2} y z \cdot z$

Step 4.11

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

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Step 4.11.1

Move $y^{2}$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} (y^{2} y) z - 12 x^{2} y z \cdot z$

Step 4.11.2

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

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Step 4.11.2.1

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} (y^{2} y^{1}) z - 12 x^{2} y z \cdot z$

Step 4.11.2.2

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

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} y^{2 + 1} z - 12 x^{2} y z \cdot z$

Step 4.11.3

Add $2$ and $1$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} y^{3} z - 12 x^{2} y z \cdot z$

Step 4.12

Multiply $z$ by $z$ by adding the exponents.

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Step 4.12.1

Move $z$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} y^{3} z - 12 x^{2} y (z \cdot z)$

Step 4.12.2

Multiply $z$ by $z$ .

$10 x^{3} y^{5} z^{5} + 10 x^{2} y^{3} z^{6} + 8 x^{3} y^{3} z^{3} + 8 x^{2} y z^{4} - 15 x^{3} y^{5} z^{3} - 15 x^{2} y^{3} z^{4} - 12 x^{3} y^{3} z - 12 x^{2} y z^{2}$