Pre-Algebra Examples

$(- 2 x y^{2} + 3 x^{2} y) (3 x^{3} y^{2} + 4 x y^{2} + 6 x)$

Step 1

Expand $(- 2 x y^{2} + 3 x^{2} y) (3 x^{3} y^{2} + 4 x y^{2} + 6 x)$ by multiplying each term in the first expression by each term in the second expression.

$- 2 x y^{2} (3 x^{3} y^{2}) - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2

Simplify each term.

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Step 2.1

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

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Step 2.1.1

Move $x^{3}$ .

$- 2 (x^{3} x) y^{2} (3 y^{2}) - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.1.2

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

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Step 2.1.2.1

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

$- 2 (x^{3} x^{1}) y^{2} (3 y^{2}) - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.1.2.2

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

$- 2 x^{3 + 1} y^{2} (3 y^{2}) - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.1.3

Add $3$ and $1$ .

$- 2 x^{4} y^{2} (3 y^{2}) - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.2

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

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Step 2.2.1

Move $y^{2}$ .

$- 2 x^{4} (y^{2} y^{2}) \cdot 3 - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.2.2

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

$- 2 x^{4} y^{2 + 2} \cdot 3 - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.2.3

Add $2$ and $2$ .

$- 2 x^{4} y^{4} \cdot 3 - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.3

Multiply $3$ by $- 2$ .

$- 6 x^{4} y^{4} - 2 x y^{2} (4 x y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.4

Multiply $x$ by $x$ by adding the exponents.

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Step 2.4.1

Move $x$ .

$- 6 x^{4} y^{4} - 2 (x \cdot x) y^{2} (4 y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.4.2

Multiply $x$ by $x$ .

$- 6 x^{4} y^{4} - 2 x^{2} y^{2} (4 y^{2}) - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.5

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

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Step 2.5.1

Move $y^{2}$ .

$- 6 x^{4} y^{4} - 2 x^{2} (y^{2} y^{2}) \cdot 4 - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.5.2

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

$- 6 x^{4} y^{4} - 2 x^{2} y^{2 + 2} \cdot 4 - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.5.3

Add $2$ and $2$ .

$- 6 x^{4} y^{4} - 2 x^{2} y^{4} \cdot 4 - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.6

Multiply $4$ by $- 2$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 2 x y^{2} (6 x) + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.7

Multiply $x$ by $x$ by adding the exponents.

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Step 2.7.1

Move $x$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 2 (x \cdot x) y^{2} \cdot 6 + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.7.2

Multiply $x$ by $x$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 2 x^{2} y^{2} \cdot 6 + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.8

Multiply $6$ by $- 2$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 3 x^{2} y (3 x^{3} y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.9

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

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Step 2.9.1

Move $x^{3}$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 3 (x^{3} x^{2}) y (3 y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.9.2

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 3 x^{3 + 2} y (3 y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.9.3

Add $3$ and $2$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 3 x^{5} y (3 y^{2}) + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.10

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

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Step 2.10.1

Move $y^{2}$ .

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

Step 2.10.2

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

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Step 2.10.2.1

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

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

Step 2.10.2.2

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

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

Step 2.10.3

Add $2$ and $1$ .

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

Step 2.11

Multiply $3$ by $3$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{2} y (4 x y^{2}) + 3 x^{2} y (6 x)$

Step 2.12

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

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Step 2.12.1

Move $x$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 (x \cdot x^{2}) y (4 y^{2}) + 3 x^{2} y (6 x)$

Step 2.12.2

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

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Step 2.12.2.1

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 (x^{1} x^{2}) y (4 y^{2}) + 3 x^{2} y (6 x)$

Step 2.12.2.2

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{1 + 2} y (4 y^{2}) + 3 x^{2} y (6 x)$

Step 2.12.3

Add $1$ and $2$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{3} y (4 y^{2}) + 3 x^{2} y (6 x)$

Step 2.13

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

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Step 2.13.1

Move $y^{2}$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{3} (y^{2} y) \cdot 4 + 3 x^{2} y (6 x)$

Step 2.13.2

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

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Step 2.13.2.1

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{3} (y^{2} y^{1}) \cdot 4 + 3 x^{2} y (6 x)$

Step 2.13.2.2

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{3} y^{2 + 1} \cdot 4 + 3 x^{2} y (6 x)$

Step 2.13.3

Add $2$ and $1$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 3 x^{3} y^{3} \cdot 4 + 3 x^{2} y (6 x)$

Step 2.14

Multiply $4$ by $3$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 3 x^{2} y (6 x)$

Step 2.15

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

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Step 2.15.1

Move $x$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 3 (x \cdot x^{2}) y \cdot 6$

Step 2.15.2

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

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Step 2.15.2.1

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 3 (x^{1} x^{2}) y \cdot 6$

Step 2.15.2.2

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

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 3 x^{1 + 2} y \cdot 6$

Step 2.15.3

Add $1$ and $2$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 3 x^{3} y \cdot 6$

Step 2.16

Multiply $6$ by $3$ .

$- 6 x^{4} y^{4} - 8 x^{2} y^{4} - 12 x^{2} y^{2} + 9 x^{5} y^{3} + 12 x^{3} y^{3} + 18 x^{3} y$