Finite Math Examples

$15 x^{3} {(x + y)}^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1

Simplify each term.

Tap for more steps...

Step 1.1

Rewrite ${(x + y)}^{2}$ as $(x + y) (x + y)$ .

$15 x^{3} ((x + y) (x + y)) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.2

Expand $(x + y) (x + y)$ using the FOIL Method.

Tap for more steps...

Step 1.2.1

Apply the distributive property.

$15 x^{3} (x (x + y) + y (x + y)) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.2.2

Apply the distributive property.

$15 x^{3} (x \cdot x + x y + y (x + y)) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.2.3

Apply the distributive property.

$15 x^{3} (x \cdot x + x y + y x + y \cdot y) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.3

Simplify and combine like terms.

Tap for more steps...

Step 1.3.1

Simplify each term.

Tap for more steps...

Step 1.3.1.1

Multiply $x$ by $x$ .

$15 x^{3} (x^{2} + x y + y x + y \cdot y) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.3.1.2

Multiply $y$ by $y$ .

$15 x^{3} (x^{2} + x y + y x + y^{2}) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.3.2

Add $x y$ and $y x$ .

Tap for more steps...

Step 1.3.2.1

Reorder $y$ and $x$ .

$15 x^{3} (x^{2} + x y + x y + y^{2}) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.3.2.2

Add $x y$ and $x y$ .

$15 x^{3} (x^{2} + 2 x y + y^{2}) - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.4

Apply the distributive property.

$15 x^{3} x^{2} + 15 x^{3} (2 x y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5

Simplify.

Tap for more steps...

Step 1.5.1

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

Tap for more steps...

Step 1.5.1.1

Move $x^{2}$ .

$15 (x^{2} x^{3}) + 15 x^{3} (2 x y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.1.2

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

$15 x^{2 + 3} + 15 x^{3} (2 x y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.1.3

Add $2$ and $3$ .

$15 x^{5} + 15 x^{3} (2 x y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.2

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

Tap for more steps...

Step 1.5.2.1

Move $x$ .

$15 x^{5} + 15 (x \cdot x^{3}) (2 y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.2.2

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

Tap for more steps...

Step 1.5.2.2.1

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

$15 x^{5} + 15 (x^{1} x^{3}) (2 y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.2.2.2

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

$15 x^{5} + 15 x^{1 + 3} (2 y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.5.2.3

Add $1$ and $3$ .

$15 x^{5} + 15 x^{4} (2 y) + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.6

Simplify each term.

Tap for more steps...

Step 1.6.1

Rewrite using the commutative property of multiplication.

$15 x^{5} + 15 \cdot 2 x^{4} y + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.6.2

Multiply $15$ by $2$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{2} (x + y) - 45 x {(x + y)}^{4}$

Step 1.7

Apply the distributive property.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{2} x - 30 x^{2} y - 45 x {(x + y)}^{4}$

Step 1.8

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

Tap for more steps...

Step 1.8.1

Move $x$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 (x \cdot x^{2}) - 30 x^{2} y - 45 x {(x + y)}^{4}$

Step 1.8.2

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

Tap for more steps...

Step 1.8.2.1

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 (x^{1} x^{2}) - 30 x^{2} y - 45 x {(x + y)}^{4}$

Step 1.8.2.2

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{1 + 2} - 30 x^{2} y - 45 x {(x + y)}^{4}$

Step 1.8.3

Add $1$ and $2$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x {(x + y)}^{4}$

Step 1.9

Use the Binomial Theorem.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x (x^{4} + 4 x^{3} y + 6 x^{2} y^{2} + 4 x y^{3} + y^{4})$

Step 1.10

Apply the distributive property.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x \cdot x^{4} - 45 x (4 x^{3} y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11

Simplify.

Tap for more steps...

Step 1.11.1

Multiply $x$ by $x^{4}$ by adding the exponents.

Tap for more steps...

Step 1.11.1.1

Move $x^{4}$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 (x^{4} x) - 45 x (4 x^{3} y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.1.2

Multiply $x^{4}$ by $x$ .

Tap for more steps...

Step 1.11.1.2.1

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 (x^{4} x^{1}) - 45 x (4 x^{3} y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.1.2.2

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{4 + 1} - 45 x (4 x^{3} y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.1.3

Add $4$ and $1$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x (4 x^{3} y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.2

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

Tap for more steps...

Step 1.11.2.1

Move $x^{3}$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 (x^{3} x) (4 y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.2.2

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

Tap for more steps...

Step 1.11.2.2.1

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 (x^{3} x^{1}) (4 y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.2.2.2

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{3 + 1} (4 y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.2.3

Add $3$ and $1$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 x (6 x^{2} y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.3

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

Tap for more steps...

Step 1.11.3.1

Move $x^{2}$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 (x^{2} x) (6 y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.3.2

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

Tap for more steps...

Step 1.11.3.2.1

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 (x^{2} x^{1}) (6 y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.3.2.2

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

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 x^{2 + 1} (6 y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.3.3

Add $2$ and $1$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 x^{3} (6 y^{2}) - 45 x (4 x y^{3}) - 45 x y^{4}$

Step 1.11.4

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

Tap for more steps...

Step 1.11.4.1

Move $x$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 x^{3} (6 y^{2}) - 45 (x \cdot x) (4 y^{3}) - 45 x y^{4}$

Step 1.11.4.2

Multiply $x$ by $x$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 x^{4} (4 y) - 45 x^{3} (6 y^{2}) - 45 x^{2} (4 y^{3}) - 45 x y^{4}$

Step 1.12

Simplify each term.

Tap for more steps...

Step 1.12.1

Rewrite using the commutative property of multiplication.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 45 \cdot 4 x^{4} y - 45 x^{3} (6 y^{2}) - 45 x^{2} (4 y^{3}) - 45 x y^{4}$

Step 1.12.2

Multiply $- 45$ by $4$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 180 x^{4} y - 45 x^{3} (6 y^{2}) - 45 x^{2} (4 y^{3}) - 45 x y^{4}$

Step 1.12.3

Rewrite using the commutative property of multiplication.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 180 x^{4} y - 45 \cdot 6 x^{3} y^{2} - 45 x^{2} (4 y^{3}) - 45 x y^{4}$

Step 1.12.4

Multiply $- 45$ by $6$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 180 x^{4} y - 270 x^{3} y^{2} - 45 x^{2} (4 y^{3}) - 45 x y^{4}$

Step 1.12.5

Rewrite using the commutative property of multiplication.

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 180 x^{4} y - 270 x^{3} y^{2} - 45 \cdot 4 x^{2} y^{3} - 45 x y^{4}$

Step 1.12.6

Multiply $- 45$ by $4$ .

$15 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 45 x^{5} - 180 x^{4} y - 270 x^{3} y^{2} - 180 x^{2} y^{3} - 45 x y^{4}$

Step 2

Simplify by adding terms.

Tap for more steps...

Step 2.1

Subtract $45 x^{5}$ from $15 x^{5}$ .

$- 30 x^{5} + 30 x^{4} y + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 180 x^{4} y - 270 x^{3} y^{2} - 180 x^{2} y^{3} - 45 x y^{4}$

Step 2.2

Subtract $180 x^{4} y$ from $30 x^{4} y$ .

$- 30 x^{5} + 15 x^{3} y^{2} - 30 x^{3} - 30 x^{2} y - 150 x^{4} y - 270 x^{3} y^{2} - 180 x^{2} y^{3} - 45 x y^{4}$

Step 2.3

Subtract $270 x^{3} y^{2}$ from $15 x^{3} y^{2}$ .

$- 30 x^{5} - 30 x^{3} - 30 x^{2} y - 150 x^{4} y - 255 x^{3} y^{2} - 180 x^{2} y^{3} - 45 x y^{4}$