Calculus Examples

$(x^{2} - 5 x + 2) (5 x^{3} - x^{2} + 5)$

Step 1

Differentiate using the Product Rule which states that $\frac{d}{d x} [f (x) g (x)]$ is $f (x) \frac{d}{d x} [g (x)] + g (x) \frac{d}{d x} [f (x)]$ where $f (x) = x^{2} - 5 x + 2$ and $g (x) = 5 x^{3} - x^{2} + 5$ .

$(x^{2} - 5 x + 2) \frac{d}{d x} [5 x^{3} - x^{2} + 5] + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2

Differentiate.

Tap for more steps...

Step 2.1

By the Sum Rule, the derivative of $5 x^{3} - x^{2} + 5$ with respect to $x$ is $\frac{d}{d x} [5 x^{3}] + \frac{d}{d x} [- x^{2}] + \frac{d}{d x} [5]$ .

$(x^{2} - 5 x + 2) (\frac{d}{d x} [5 x^{3}] + \frac{d}{d x} [- x^{2}] + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.2

Since $5$ is constant with respect to $x$ , the derivative of $5 x^{3}$ with respect to $x$ is $5 \frac{d}{d x} [x^{3}]$ .

$(x^{2} - 5 x + 2) (5 \frac{d}{d x} [x^{3}] + \frac{d}{d x} [- x^{2}] + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.3

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 3$ .

$(x^{2} - 5 x + 2) (5 (3 x^{2}) + \frac{d}{d x} [- x^{2}] + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.4

Multiply $3$ by $5$ .

$(x^{2} - 5 x + 2) (15 x^{2} + \frac{d}{d x} [- x^{2}] + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.5

Since $- 1$ is constant with respect to $x$ , the derivative of $- x^{2}$ with respect to $x$ is $- \frac{d}{d x} [x^{2}]$ .

$(x^{2} - 5 x + 2) (15 x^{2} - \frac{d}{d x} [x^{2}] + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.6

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 2$ .

$(x^{2} - 5 x + 2) (15 x^{2} - (2 x) + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.7

Multiply $2$ by $- 1$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x + \frac{d}{d x} [5]) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.8

Since $5$ is constant with respect to $x$ , the derivative of $5$ with respect to $x$ is $0$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x + 0) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.9

Add $15 x^{2} - 2 x$ and $0$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) \frac{d}{d x} [x^{2} - 5 x + 2]$

Step 2.10

By the Sum Rule, the derivative of $x^{2} - 5 x + 2$ with respect to $x$ is $\frac{d}{d x} [x^{2}] + \frac{d}{d x} [- 5 x] + \frac{d}{d x} [2]$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (\frac{d}{d x} [x^{2}] + \frac{d}{d x} [- 5 x] + \frac{d}{d x} [2])$

Step 2.11

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 2$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x + \frac{d}{d x} [- 5 x] + \frac{d}{d x} [2])$

Step 2.12

Since $- 5$ is constant with respect to $x$ , the derivative of $- 5 x$ with respect to $x$ is $- 5 \frac{d}{d x} [x]$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5 \frac{d}{d x} [x] + \frac{d}{d x} [2])$

Step 2.13

Differentiate using the Power Rule which states that $\frac{d}{d x} [x^{n}]$ is $n x^{n - 1}$ where $n = 1$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5 \cdot 1 + \frac{d}{d x} [2])$

Step 2.14

Multiply $- 5$ by $1$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5 + \frac{d}{d x} [2])$

Step 2.15

Since $2$ is constant with respect to $x$ , the derivative of $2$ with respect to $x$ is $0$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5 + 0)$

Step 2.16

Add $2 x - 5$ and $0$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5)$

Step 3

Simplify.

Tap for more steps...

Step 3.1

Factor $1$ out of $(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5)$ .

Tap for more steps...

Step 3.1.1

Factor $1$ out of $(x^{2} - 5 x + 2) (15 x^{2} - 2 x)$ .

$1 ((x^{2} - 5 x + 2) (15 x^{2} - 2 x)) + (5 x^{3} - x^{2} + 5) (2 x - 5)$

Step 3.1.2

Factor $1$ out of $(5 x^{3} - x^{2} + 5) (2 x - 5)$ .

$1 ((x^{2} - 5 x + 2) (15 x^{2} - 2 x)) + 1 ((5 x^{3} - x^{2} + 5) (2 x - 5))$

Step 3.1.3

Factor $1$ out of $1 ((x^{2} - 5 x + 2) (15 x^{2} - 2 x)) + 1 ((5 x^{3} - x^{2} + 5) (2 x - 5))$ .

$1 ((x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5))$

Step 3.2

Multiply $(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5)$ by $1$ .

$(x^{2} - 5 x + 2) (15 x^{2} - 2 x) + (5 x^{3} - x^{2} + 5) (2 x - 5)$

Step 3.3

Reorder terms.

$(15 x^{2} - 2 x) (x^{2} - 5 x + 2) + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4

Simplify each term.

Tap for more steps...

Step 3.4.1

Expand $(15 x^{2} - 2 x) (x^{2} - 5 x + 2)$ by multiplying each term in the first expression by each term in the second expression.

$15 x^{2} x^{2} + 15 x^{2} (- 5 x) + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2

Simplify each term.

Tap for more steps...

Step 3.4.2.1

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

Tap for more steps...

Step 3.4.2.1.1

Move $x^{2}$ .

$15 (x^{2} x^{2}) + 15 x^{2} (- 5 x) + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.1.2

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

$15 x^{2 + 2} + 15 x^{2} (- 5 x) + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.1.3

Add $2$ and $2$ .

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

Step 3.4.2.2

Rewrite using the commutative property of multiplication.

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

Step 3.4.2.3

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

Tap for more steps...

Step 3.4.2.3.1

Move $x$ .

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

Step 3.4.2.3.2

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

Tap for more steps...

Step 3.4.2.3.2.1

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

$15 x^{4} + 15 \cdot - 5 (x^{1} x^{2}) + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.3.2.2

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

$15 x^{4} + 15 \cdot - 5 x^{1 + 2} + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.3.3

Add $1$ and $2$ .

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

Step 3.4.2.4

Multiply $15$ by $- 5$ .

$15 x^{4} - 75 x^{3} + 15 x^{2} \cdot 2 - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.5

Multiply $2$ by $15$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x \cdot x^{2} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.6

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

Tap for more steps...

Step 3.4.2.6.1

Move $x^{2}$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 (x^{2} x) - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.6.2

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

Tap for more steps...

Step 3.4.2.6.2.1

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

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 (x^{2} x^{1}) - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.6.2.2

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

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{2 + 1} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.6.3

Add $2$ and $1$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} - 2 x (- 5 x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.7

Rewrite using the commutative property of multiplication.

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} - 2 \cdot - 5 x \cdot x - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.8

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

Tap for more steps...

Step 3.4.2.8.1

Move $x$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} - 2 \cdot - 5 (x \cdot x) - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.8.2

Multiply $x$ by $x$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} - 2 \cdot - 5 x^{2} - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.9

Multiply $- 2$ by $- 5$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} + 10 x^{2} - 2 x \cdot 2 + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.2.10

Multiply $2$ by $- 2$ .

$15 x^{4} - 75 x^{3} + 30 x^{2} - 2 x^{3} + 10 x^{2} - 4 x + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.3

Subtract $2 x^{3}$ from $- 75 x^{3}$ .

$15 x^{4} - 77 x^{3} + 30 x^{2} + 10 x^{2} - 4 x + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.4

Add $30 x^{2}$ and $10 x^{2}$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + (2 x - 5) (5 x^{3} - x^{2} + 5)$

Step 3.4.5

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

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 x (5 x^{3}) + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6

Simplify each term.

Tap for more steps...

Step 3.4.6.1

Rewrite using the commutative property of multiplication.

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 \cdot 5 x \cdot x^{3} + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.2

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

Tap for more steps...

Step 3.4.6.2.1

Move $x^{3}$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 \cdot 5 (x^{3} x) + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.2.2

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

Tap for more steps...

Step 3.4.6.2.2.1

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

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 \cdot 5 (x^{3} x^{1}) + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.2.2.2

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

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 \cdot 5 x^{3 + 1} + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.2.3

Add $3$ and $1$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 2 \cdot 5 x^{4} + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.3

Multiply $2$ by $5$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 x (- x^{2}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.4

Rewrite using the commutative property of multiplication.

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 \cdot - 1 x \cdot x^{2} + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.5

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

Tap for more steps...

Step 3.4.6.5.1

Move $x^{2}$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 \cdot - 1 (x^{2} x) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.5.2

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

Tap for more steps...

Step 3.4.6.5.2.1

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

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 \cdot - 1 (x^{2} x^{1}) + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.5.2.2

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

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 \cdot - 1 x^{2 + 1} + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.5.3

Add $2$ and $1$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} + 2 \cdot - 1 x^{3} + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.6

Multiply $2$ by $- 1$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 2 x^{3} + 2 x \cdot 5 - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.7

Multiply $5$ by $2$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 2 x^{3} + 10 x - 5 (5 x^{3}) - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.8

Multiply $5$ by $- 5$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 2 x^{3} + 10 x - 25 x^{3} - 5 (- x^{2}) - 5 \cdot 5$

Step 3.4.6.9

Multiply $- 1$ by $- 5$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 2 x^{3} + 10 x - 25 x^{3} + 5 x^{2} - 5 \cdot 5$

Step 3.4.6.10

Multiply $- 5$ by $5$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 2 x^{3} + 10 x - 25 x^{3} + 5 x^{2} - 25$

Step 3.4.7

Subtract $25 x^{3}$ from $- 2 x^{3}$ .

$15 x^{4} - 77 x^{3} + 40 x^{2} - 4 x + 10 x^{4} - 27 x^{3} + 10 x + 5 x^{2} - 25$

Step 3.5

Add $15 x^{4}$ and $10 x^{4}$ .

$25 x^{4} - 77 x^{3} + 40 x^{2} - 4 x - 27 x^{3} + 10 x + 5 x^{2} - 25$

Step 3.6

Subtract $27 x^{3}$ from $- 77 x^{3}$ .

$25 x^{4} - 104 x^{3} + 40 x^{2} - 4 x + 10 x + 5 x^{2} - 25$

Step 3.7

Add $40 x^{2}$ and $5 x^{2}$ .

$25 x^{4} - 104 x^{3} + 45 x^{2} - 4 x + 10 x - 25$

Step 3.8

Add $- 4 x$ and $10 x$ .

$25 x^{4} - 104 x^{3} + 45 x^{2} + 6 x - 25$