Trigonometry Examples

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

Step 1

Simplify each term.

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Step 1.1

Use the Binomial Theorem.

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

Step 1.2

Simplify each term.

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Step 1.2.1

Apply the product rule to $3 x$ .

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

Step 1.2.2

Raise $3$ to the power of $3$ .

$6 x (27 x^{3} + 3 {(3 x)}^{2} \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.3

Apply the product rule to $3 x$ .

$6 x (27 x^{3} + 3 (3^{2} x^{2}) \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.4

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

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Step 1.2.4.1

Move $3^{2}$ .

$6 x (27 x^{3} + 3^{2} \cdot 3 x^{2} \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.4.2

Multiply $3^{2}$ by $3$ .

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Step 1.2.4.2.1

Raise $3$ to the power of $1$ .

$6 x (27 x^{3} + 3^{2} \cdot 3^{1} x^{2} \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.4.2.2

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

$6 x (27 x^{3} + 3^{2 + 1} x^{2} \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.4.3

Add $2$ and $1$ .

$6 x (27 x^{3} + 3^{3} x^{2} \cdot 1 + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.5

Simplify $3^{3} x^{2} \cdot 1$ .

$6 x (27 x^{3} + 3^{3} x^{2} + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.6

Raise $3$ to the power of $3$ .

$6 x (27 x^{3} + 27 x^{2} + 3 (3 x) \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.7

Multiply $3$ by $3$ .

$6 x (27 x^{3} + 27 x^{2} + 9 x \cdot 1^{2} + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.8

One to any power is one.

$6 x (27 x^{3} + 27 x^{2} + 9 x \cdot 1 + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.9

Multiply $9$ by $1$ .

$6 x (27 x^{3} + 27 x^{2} + 9 x + 1^{3}) - {(3 x + 1)}^{4}$

Step 1.2.10

One to any power is one.

$6 x (27 x^{3} + 27 x^{2} + 9 x + 1) - {(3 x + 1)}^{4}$

Step 1.3

Apply the distributive property.

$6 x (27 x^{3}) + 6 x (27 x^{2}) + 6 x (9 x) + 6 x \cdot 1 - {(3 x + 1)}^{4}$

Step 1.4

Simplify.

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Step 1.4.1

Rewrite using the commutative property of multiplication.

$6 \cdot 27 x \cdot x^{3} + 6 x (27 x^{2}) + 6 x (9 x) + 6 x \cdot 1 - {(3 x + 1)}^{4}$

Step 1.4.2

Rewrite using the commutative property of multiplication.

$6 \cdot 27 x \cdot x^{3} + 6 \cdot 27 x \cdot x^{2} + 6 x (9 x) + 6 x \cdot 1 - {(3 x + 1)}^{4}$

Step 1.4.3

Rewrite using the commutative property of multiplication.

$6 \cdot 27 x \cdot x^{3} + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x \cdot 1 - {(3 x + 1)}^{4}$

Step 1.4.4

Multiply $6$ by $1$ .

$6 \cdot 27 x \cdot x^{3} + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5

Simplify each term.

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Step 1.5.1

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

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Step 1.5.1.1

Move $x^{3}$ .

$6 \cdot 27 (x^{3} x) + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.1.2

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

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Step 1.5.1.2.1

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

$6 \cdot 27 (x^{3} x^{1}) + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.1.2.2

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

$6 \cdot 27 x^{3 + 1} + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.1.3

Add $3$ and $1$ .

$6 \cdot 27 x^{4} + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.2

Multiply $6$ by $27$ .

$162 x^{4} + 6 \cdot 27 x \cdot x^{2} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.3

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

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Step 1.5.3.1

Move $x^{2}$ .

$162 x^{4} + 6 \cdot 27 (x^{2} x) + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.3.2

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

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Step 1.5.3.2.1

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

$162 x^{4} + 6 \cdot 27 (x^{2} x^{1}) + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.3.2.2

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

$162 x^{4} + 6 \cdot 27 x^{2 + 1} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.3.3

Add $2$ and $1$ .

$162 x^{4} + 6 \cdot 27 x^{3} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.4

Multiply $6$ by $27$ .

$162 x^{4} + 162 x^{3} + 6 \cdot 9 x \cdot x + 6 x - {(3 x + 1)}^{4}$

Step 1.5.5

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

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Step 1.5.5.1

Move $x$ .

$162 x^{4} + 162 x^{3} + 6 \cdot 9 (x \cdot x) + 6 x - {(3 x + 1)}^{4}$

Step 1.5.5.2

Multiply $x$ by $x$ .

$162 x^{4} + 162 x^{3} + 6 \cdot 9 x^{2} + 6 x - {(3 x + 1)}^{4}$

Step 1.5.6

Multiply $6$ by $9$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - {(3 x + 1)}^{4}$

Step 1.6

Use the Binomial Theorem.

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - ({(3 x)}^{4} + 4 {(3 x)}^{3} \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7

Simplify each term.

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Step 1.7.1

Apply the product rule to $3 x$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (3^{4} x^{4} + 4 {(3 x)}^{3} \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.2

Raise $3$ to the power of $4$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 4 {(3 x)}^{3} \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.3

Apply the product rule to $3 x$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 4 (3^{3} x^{3}) \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.4

Raise $3$ to the power of $3$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 4 (27 x^{3}) \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.5

Multiply $27$ by $4$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} \cdot 1 + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.6

Multiply $108$ by $1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 6 {(3 x)}^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.7

Apply the product rule to $3 x$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 6 (3^{2} x^{2}) \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.8

Raise $3$ to the power of $2$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 6 (9 x^{2}) \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.9

Multiply $9$ by $6$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} \cdot 1^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.10

One to any power is one.

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} \cdot 1 + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.11

Multiply $54$ by $1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} + 4 (3 x) \cdot 1^{3} + 1^{4})$

Step 1.7.12

Multiply $3$ by $4$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} + 12 x \cdot 1^{3} + 1^{4})$

Step 1.7.13

One to any power is one.

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} + 12 x \cdot 1 + 1^{4})$

Step 1.7.14

Multiply $12$ by $1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} + 12 x + 1^{4})$

Step 1.7.15

One to any power is one.

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4} + 108 x^{3} + 54 x^{2} + 12 x + 1)$

Step 1.8

Apply the distributive property.

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - (81 x^{4}) - (108 x^{3}) - (54 x^{2}) - (12 x) - 1 \cdot 1$

Step 1.9

Simplify.

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Step 1.9.1

Multiply $81$ by $- 1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - (108 x^{3}) - (54 x^{2}) - (12 x) - 1 \cdot 1$

Step 1.9.2

Multiply $108$ by $- 1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - 108 x^{3} - (54 x^{2}) - (12 x) - 1 \cdot 1$

Step 1.9.3

Multiply $54$ by $- 1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - 108 x^{3} - 54 x^{2} - (12 x) - 1 \cdot 1$

Step 1.9.4

Multiply $12$ by $- 1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - 108 x^{3} - 54 x^{2} - 12 x - 1 \cdot 1$

Step 1.9.5

Multiply $- 1$ by $1$ .

$162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - 108 x^{3} - 54 x^{2} - 12 x - 1$

Step 2

Simplify by adding terms.

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Step 2.1

Combine the opposite terms in $162 x^{4} + 162 x^{3} + 54 x^{2} + 6 x - 81 x^{4} - 108 x^{3} - 54 x^{2} - 12 x - 1$ .

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Step 2.1.1

Subtract $54 x^{2}$ from $54 x^{2}$ .

$162 x^{4} + 162 x^{3} + 6 x - 81 x^{4} - 108 x^{3} + 0 - 12 x - 1$

Step 2.1.2

Add $162 x^{4} + 162 x^{3} + 6 x - 81 x^{4} - 108 x^{3}$ and $0$ .

$162 x^{4} + 162 x^{3} + 6 x - 81 x^{4} - 108 x^{3} - 12 x - 1$

Step 2.2

Subtract $81 x^{4}$ from $162 x^{4}$ .

$81 x^{4} + 162 x^{3} + 6 x - 108 x^{3} - 12 x - 1$

Step 2.3

Subtract $108 x^{3}$ from $162 x^{3}$ .

$81 x^{4} + 54 x^{3} + 6 x - 12 x - 1$

Step 2.4

Subtract $12 x$ from $6 x$ .

$81 x^{4} + 54 x^{3} - 6 x - 1$