Algebra Examples

${((x + 1) - y)}^{3}$

Step 1

Use the Multinomial Theorem.

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

Step 2

Simplify terms.

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Step 2.1

Simplify each term.

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Step 2.1.1

Multiply $3$ by $1$ .

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

Step 2.1.2

One to any power is one.

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

Step 2.1.3

Multiply $3$ by $1$ .

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

Step 2.1.4

One to any power is one.

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

Step 2.1.5

Rewrite using the commutative property of multiplication.

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

Step 2.1.6

Multiply $3$ by $- 1$ .

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

Step 2.1.7

Multiply $6$ by $1$ .

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

Step 2.1.8

Rewrite using the commutative property of multiplication.

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

Step 2.1.9

Multiply $6$ by $- 1$ .

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

Step 2.1.10

One to any power is one.

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

Step 2.1.11

Multiply $3$ by $1$ .

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

Step 2.1.12

Multiply $- 1$ by $3$ .

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

Step 2.1.13

Apply the product rule to $- y$ .

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

Step 2.1.14

Rewrite using the commutative property of multiplication.

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

Step 2.1.15

Raise $- 1$ to the power of $2$ .

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

Step 2.1.16

Multiply $3$ by $1$ .

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

Step 2.1.17

Multiply $3$ by $1$ .

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 {(- y)}^{2} + {(- y)}^{3}$

Step 2.1.18

Apply the product rule to $- y$ .

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 ({(- 1)}^{2} y^{2}) + {(- y)}^{3}$

Step 2.1.19

Raise $- 1$ to the power of $2$ .

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 (1 y^{2}) + {(- y)}^{3}$

Step 2.1.20

Multiply $y^{2}$ by $1$ .

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 y^{2} + {(- y)}^{3}$

Step 2.1.21

Apply the product rule to $- y$ .

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 y^{2} + {(- 1)}^{3} y^{3}$

Step 2.1.22

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

$x^{3} + 3 x^{2} + 3 x + 1 - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 y^{2} - y^{3}$

Step 2.2

Reorder.

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Step 2.2.1

Move $1$ .

$x^{3} + 3 x^{2} + 3 x - 3 x^{2} y - 6 x y - 3 y + 3 x y^{2} + 3 y^{2} - y^{3} + 1$

Step 2.2.2

Move $- 3 y$ .

$x^{3} + 3 x^{2} + 3 x - 3 x^{2} y - 6 x y + 3 x y^{2} + 3 y^{2} - y^{3} - 3 y + 1$

Step 2.2.3

Move $3 x$ .

$x^{3} + 3 x^{2} - 3 x^{2} y - 6 x y + 3 x y^{2} + 3 y^{2} - y^{3} + 3 x - 3 y + 1$

Step 2.2.4

Move $3 y^{2}$ .

$x^{3} + 3 x^{2} - 3 x^{2} y - 6 x y + 3 x y^{2} - y^{3} + 3 y^{2} + 3 x - 3 y + 1$

Step 2.2.5

Move $- 6 x y$ .

$x^{3} + 3 x^{2} - 3 x^{2} y + 3 x y^{2} - y^{3} - 6 x y + 3 y^{2} + 3 x - 3 y + 1$

Step 2.2.6

Move $3 x^{2}$ .

$x^{3} - 3 x^{2} y + 3 x y^{2} - y^{3} + 3 x^{2} - 6 x y + 3 y^{2} + 3 x - 3 y + 1$