Algebra Examples

$(- 6 a^{3} b + 2 a b^{2}) (5 a^{2} - 2 a b^{2} - b)$

Step 1

Expand $(- 6 a^{3} b + 2 a b^{2}) (5 a^{2} - 2 a b^{2} - b)$ by multiplying each term in the first expression by each term in the second expression.

$- 6 a^{3} b (5 a^{2}) - 6 a^{3} b (- 2 a b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2

Simplify terms.

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Step 2.1

Simplify each term.

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Step 2.1.1

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

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Step 2.1.1.1

Move $a^{2}$ .

$- 6 (a^{2} a^{3}) b \cdot 5 - 6 a^{3} b (- 2 a b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.1.2

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

$- 6 a^{2 + 3} b \cdot 5 - 6 a^{3} b (- 2 a b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.1.3

Add $2$ and $3$ .

$- 6 a^{5} b \cdot 5 - 6 a^{3} b (- 2 a b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.2

Multiply $5$ by $- 6$ .

$- 30 a^{5} b - 6 a^{3} b (- 2 a b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.3

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

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Step 2.1.3.1

Move $a$ .

$- 30 a^{5} b - 6 (a \cdot a^{3}) b (- 2 b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.3.2

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

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Step 2.1.3.2.1

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

$- 30 a^{5} b - 6 (a^{1} a^{3}) b (- 2 b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.3.2.2

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

$- 30 a^{5} b - 6 a^{1 + 3} b (- 2 b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.3.3

Add $1$ and $3$ .

$- 30 a^{5} b - 6 a^{4} b (- 2 b^{2}) - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.4

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

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Step 2.1.4.1

Move $b^{2}$ .

$- 30 a^{5} b - 6 a^{4} (b^{2} b) \cdot - 2 - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.4.2

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

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Step 2.1.4.2.1

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

$- 30 a^{5} b - 6 a^{4} (b^{2} b^{1}) \cdot - 2 - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.4.2.2

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

$- 30 a^{5} b - 6 a^{4} b^{2 + 1} \cdot - 2 - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.4.3

Add $2$ and $1$ .

$- 30 a^{5} b - 6 a^{4} b^{3} \cdot - 2 - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.5

Multiply $- 2$ by $- 6$ .

$- 30 a^{5} b + 12 a^{4} b^{3} - 6 a^{3} b (- b) + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.6

Multiply $b$ by $b$ by adding the exponents.

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Step 2.1.6.1

Move $b$ .

$- 30 a^{5} b + 12 a^{4} b^{3} - 6 a^{3} (b \cdot b) \cdot - 1 + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.6.2

Multiply $b$ by $b$ .

$- 30 a^{5} b + 12 a^{4} b^{3} - 6 a^{3} b^{2} \cdot - 1 + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.7

Multiply $- 1$ by $- 6$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 2 a b^{2} (5 a^{2}) + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.8

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

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Step 2.1.8.1

Move $a^{2}$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 2 (a^{2} a) b^{2} \cdot 5 + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.8.2

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

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Step 2.1.8.2.1

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

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 2 (a^{2} a^{1}) b^{2} \cdot 5 + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.8.2.2

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

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 2 a^{2 + 1} b^{2} \cdot 5 + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.8.3

Add $2$ and $1$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 2 a^{3} b^{2} \cdot 5 + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.9

Multiply $5$ by $2$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 a b^{2} (- 2 a b^{2}) + 2 a b^{2} (- b)$

Step 2.1.10

Multiply $a$ by $a$ by adding the exponents.

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Step 2.1.10.1

Move $a$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 (a \cdot a) b^{2} (- 2 b^{2}) + 2 a b^{2} (- b)$

Step 2.1.10.2

Multiply $a$ by $a$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 a^{2} b^{2} (- 2 b^{2}) + 2 a b^{2} (- b)$

Step 2.1.11

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

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Step 2.1.11.1

Move $b^{2}$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 a^{2} (b^{2} b^{2}) \cdot - 2 + 2 a b^{2} (- b)$

Step 2.1.11.2

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

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 a^{2} b^{2 + 2} \cdot - 2 + 2 a b^{2} (- b)$

Step 2.1.11.3

Add $2$ and $2$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} + 2 a^{2} b^{4} \cdot - 2 + 2 a b^{2} (- b)$

Step 2.1.12

Multiply $- 2$ by $2$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} + 2 a b^{2} (- b)$

Step 2.1.13

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

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Step 2.1.13.1

Move $b$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} + 2 a (b \cdot b^{2}) \cdot - 1$

Step 2.1.13.2

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

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Step 2.1.13.2.1

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

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} + 2 a (b^{1} b^{2}) \cdot - 1$

Step 2.1.13.2.2

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

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} + 2 a b^{1 + 2} \cdot - 1$

Step 2.1.13.3

Add $1$ and $2$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} + 2 a b^{3} \cdot - 1$

Step 2.1.14

Multiply $- 1$ by $2$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 6 a^{3} b^{2} + 10 a^{3} b^{2} - 4 a^{2} b^{4} - 2 a b^{3}$

Step 2.2

Add $6 a^{3} b^{2}$ and $10 a^{3} b^{2}$ .

$- 30 a^{5} b + 12 a^{4} b^{3} + 16 a^{3} b^{2} - 4 a^{2} b^{4} - 2 a b^{3}$