Basic Math Examples

$(- 6 w^{2} + 9 w - 5) + (7 w^{2} + 9 w - 7) (9 w^{2} + 5 w - 2)$

Step 1

Simplify each term.

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Step 1.1

Expand $(7 w^{2} + 9 w - 7) (9 w^{2} + 5 w - 2)$ by multiplying each term in the first expression by each term in the second expression.

$- 6 w^{2} + 9 w - 5 + 7 w^{2} (9 w^{2}) + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2

Simplify each term.

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Step 1.2.1

Rewrite using the commutative property of multiplication.

$- 6 w^{2} + 9 w - 5 + 7 \cdot 9 w^{2} w^{2} + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.2

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

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Step 1.2.2.1

Move $w^{2}$ .

$- 6 w^{2} + 9 w - 5 + 7 \cdot 9 (w^{2} w^{2}) + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.2.2

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

$- 6 w^{2} + 9 w - 5 + 7 \cdot 9 w^{2 + 2} + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.2.3

Add $2$ and $2$ .

$- 6 w^{2} + 9 w - 5 + 7 \cdot 9 w^{4} + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.3

Multiply $7$ by $9$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 w^{2} (5 w) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.4

Rewrite using the commutative property of multiplication.

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 \cdot 5 w^{2} w + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.5

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

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Step 1.2.5.1

Move $w$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 \cdot 5 (w \cdot w^{2}) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.5.2

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

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Step 1.2.5.2.1

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

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 \cdot 5 (w^{1} w^{2}) + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.5.2.2

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

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 \cdot 5 w^{1 + 2} + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.5.3

Add $1$ and $2$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 7 \cdot 5 w^{3} + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.6

Multiply $7$ by $5$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} + 7 w^{2} \cdot - 2 + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.7

Multiply $- 2$ by $7$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 w (9 w^{2}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.8

Rewrite using the commutative property of multiplication.

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 \cdot 9 w \cdot w^{2} + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.9

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

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Step 1.2.9.1

Move $w^{2}$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 \cdot 9 (w^{2} w) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.9.2

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

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Step 1.2.9.2.1

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

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 \cdot 9 (w^{2} w^{1}) + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.9.2.2

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

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 \cdot 9 w^{2 + 1} + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.9.3

Add $2$ and $1$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 9 \cdot 9 w^{3} + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.10

Multiply $9$ by $9$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 9 w (5 w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.11

Rewrite using the commutative property of multiplication.

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 9 \cdot 5 w \cdot w + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.12

Multiply $w$ by $w$ by adding the exponents.

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Step 1.2.12.1

Move $w$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 9 \cdot 5 (w \cdot w) + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.12.2

Multiply $w$ by $w$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 9 \cdot 5 w^{2} + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.13

Multiply $9$ by $5$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 45 w^{2} + 9 w \cdot - 2 - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.14

Multiply $- 2$ by $9$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 45 w^{2} - 18 w - 7 (9 w^{2}) - 7 (5 w) - 7 \cdot - 2$

Step 1.2.15

Multiply $9$ by $- 7$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 45 w^{2} - 18 w - 63 w^{2} - 7 (5 w) - 7 \cdot - 2$

Step 1.2.16

Multiply $5$ by $- 7$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 45 w^{2} - 18 w - 63 w^{2} - 35 w - 7 \cdot - 2$

Step 1.2.17

Multiply $- 7$ by $- 2$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 35 w^{3} - 14 w^{2} + 81 w^{3} + 45 w^{2} - 18 w - 63 w^{2} - 35 w + 14$

Step 1.3

Add $35 w^{3}$ and $81 w^{3}$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 116 w^{3} - 14 w^{2} + 45 w^{2} - 18 w - 63 w^{2} - 35 w + 14$

Step 1.4

Add $- 14 w^{2}$ and $45 w^{2}$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 116 w^{3} + 31 w^{2} - 18 w - 63 w^{2} - 35 w + 14$

Step 1.5

Subtract $63 w^{2}$ from $31 w^{2}$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 116 w^{3} - 32 w^{2} - 18 w - 35 w + 14$

Step 1.6

Subtract $35 w$ from $- 18 w$ .

$- 6 w^{2} + 9 w - 5 + 63 w^{4} + 116 w^{3} - 32 w^{2} - 53 w + 14$

Step 2

Simplify by adding terms.

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Step 2.1

Subtract $32 w^{2}$ from $- 6 w^{2}$ .

$- 38 w^{2} + 9 w - 5 + 63 w^{4} + 116 w^{3} - 53 w + 14$

Step 2.2

Subtract $53 w$ from $9 w$ .

$- 38 w^{2} - 5 + 63 w^{4} + 116 w^{3} - 44 w + 14$

Step 2.3

Simplify the expression.

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Step 2.3.1

Add $- 5$ and $14$ .

$- 38 w^{2} + 63 w^{4} + 116 w^{3} - 44 w + 9$

Step 2.3.2

Move $- 38 w^{2}$ .

$63 w^{4} + 116 w^{3} - 38 w^{2} - 44 w + 9$