Pre-Algebra Examples

${(2 x - y)}^{6}$

Step 1

Use the Binomial Theorem.

${(2 x)}^{6} + 6 {(2 x)}^{5} (- y) + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2

Simplify each term.

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Step 2.1

Apply the product rule to $2 x$ .

$2^{6} x^{6} + 6 {(2 x)}^{5} (- y) + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.2

Raise $2$ to the power of $6$ .

$64 x^{6} + 6 {(2 x)}^{5} (- y) + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.3

Rewrite using the commutative property of multiplication.

$64 x^{6} + 6 \cdot - 1 {(2 x)}^{5} y + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.4

Multiply $6$ by $- 1$ .

$64 x^{6} - 6 {(2 x)}^{5} y + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.5

Apply the product rule to $2 x$ .

$64 x^{6} - 6 (2^{5} x^{5}) y + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.6

Raise $2$ to the power of $5$ .

$64 x^{6} - 6 (32 x^{5}) y + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.7

Multiply $32$ by $- 6$ .

$64 x^{6} - 192 x^{5} y + 15 {(2 x)}^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.8

Apply the product rule to $2 x$ .

$64 x^{6} - 192 x^{5} y + 15 (2^{4} x^{4}) {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.9

Raise $2$ to the power of $4$ .

$64 x^{6} - 192 x^{5} y + 15 (16 x^{4}) {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.10

Multiply $16$ by $15$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} {(- y)}^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.11

Apply the product rule to $- y$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} ({(- 1)}^{2} y^{2}) + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.12

Rewrite using the commutative property of multiplication.

$64 x^{6} - 192 x^{5} y + 240 \cdot {(- 1)}^{2} x^{4} y^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.13

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

$64 x^{6} - 192 x^{5} y + 240 \cdot 1 x^{4} y^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.14

Multiply $240$ by $1$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 20 {(2 x)}^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.15

Apply the product rule to $2 x$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 20 (2^{3} x^{3}) {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.16

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

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 20 (8 x^{3}) {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.17

Multiply $8$ by $20$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 160 x^{3} {(- y)}^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.18

Apply the product rule to $- y$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 160 x^{3} ({(- 1)}^{3} y^{3}) + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.19

Rewrite using the commutative property of multiplication.

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 160 \cdot {(- 1)}^{3} x^{3} y^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.20

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

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} + 160 \cdot - 1 x^{3} y^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.21

Multiply $160$ by $- 1$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 15 {(2 x)}^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.22

Apply the product rule to $2 x$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 15 (2^{2} x^{2}) {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.23

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

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 15 (4 x^{2}) {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.24

Multiply $4$ by $15$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} {(- y)}^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.25

Apply the product rule to $- y$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} ({(- 1)}^{4} y^{4}) + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.26

Rewrite using the commutative property of multiplication.

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 \cdot {(- 1)}^{4} x^{2} y^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.27

Raise $- 1$ to the power of $4$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 \cdot 1 x^{2} y^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.28

Multiply $60$ by $1$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} + 6 (2 x) {(- y)}^{5} + {(- y)}^{6}$

Step 2.29

Multiply $2$ by $6$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} + 12 x {(- y)}^{5} + {(- y)}^{6}$

Step 2.30

Apply the product rule to $- y$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} + 12 x ({(- 1)}^{5} y^{5}) + {(- y)}^{6}$

Step 2.31

Rewrite using the commutative property of multiplication.

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} + 12 \cdot {(- 1)}^{5} x y^{5} + {(- y)}^{6}$

Step 2.32

Raise $- 1$ to the power of $5$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} + 12 \cdot - 1 x y^{5} + {(- y)}^{6}$

Step 2.33

Multiply $12$ by $- 1$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} - 12 x y^{5} + {(- y)}^{6}$

Step 2.34

Apply the product rule to $- y$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} - 12 x y^{5} + {(- 1)}^{6} y^{6}$

Step 2.35

Raise $- 1$ to the power of $6$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} - 12 x y^{5} + 1 y^{6}$

Step 2.36

Multiply $y^{6}$ by $1$ .

$64 x^{6} - 192 x^{5} y + 240 x^{4} y^{2} - 160 x^{3} y^{3} + 60 x^{2} y^{4} - 12 x y^{5} + y^{6}$