Finite Math Examples

${(2 p - q)}^{6}$

Step 1

Pascal's Triangle can be displayed as such:

$1$

$1 - 1$

$1 - 2 - 1$

$1 - 3 - 3 - 1$

$1 - 4 - 6 - 4 - 1$

$1 - 5 - 10 - 10 - 5 - 1$

$1 - 6 - 15 - 20 - 15 - 6 - 1$

The triangle can be used to calculate the coefficients of the expansion of ${(a + b)}^{n}$ by taking the exponent $n$ and adding $1$ . The coefficients will correspond with line $n + 1$ of the triangle. For ${(2 p - q)}^{6}$ , $n = 6$ so the coefficients of the expansion will correspond with line $7$ .

Step 2

The expansion follows the rule ${(a + b)}^{n} = c_{0} a^{n} b^{0} + c_{1} a^{n - 1} b^{1} + c_{n - 1} a^{1} b^{n - 1} + c_{n} a^{0} b^{n}$ . The values of the coefficients, from the triangle, are $1 - 6 - 15 - 20 - 15 - 6 - 1$ .

$1 a^{6} b^{0} + 6 a^{5} b + 15 a^{4} b^{2} + 20 a^{3} b^{3} + 15 a^{2} b^{4} + 6 a b^{5} + 1 a^{0} b^{6}$

Step 3

Substitute the actual values of $a$ $2 p$ and $b$ $- q$ into the expression.

$1 {(2 p)}^{6} {(- q)}^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4

Simplify each term.

Tap for more steps...

Step 4.1

Multiply ${(2 p)}^{6}$ by $1$ .

${(2 p)}^{6} {(- q)}^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.2

Apply the product rule to $2 p$ .

$2^{6} p^{6} {(- q)}^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.3

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

$64 p^{6} {(- q)}^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.4

Apply the product rule to $- q$ .

$64 p^{6} ({(- 1)}^{0} q^{0}) + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.5

Rewrite using the commutative property of multiplication.

$64 \cdot {(- 1)}^{0} p^{6} q^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.6

Anything raised to $0$ is $1$ .

$64 \cdot 1 p^{6} q^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.7

Multiply $64$ by $1$ .

$64 p^{6} q^{0} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.8

Anything raised to $0$ is $1$ .

$64 p^{6} \cdot 1 + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.9

Multiply $64$ by $1$ .

$64 p^{6} + 6 {(2 p)}^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.10

Apply the product rule to $2 p$ .

$64 p^{6} + 6 (2^{5} p^{5}) {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.11

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

$64 p^{6} + 6 (32 p^{5}) {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.12

Multiply $32$ by $6$ .

$64 p^{6} + 192 p^{5} {(- q)}^{1} + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.13

Simplify.

$64 p^{6} + 192 p^{5} (- q) + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.14

Rewrite using the commutative property of multiplication.

$64 p^{6} + 192 \cdot - 1 p^{5} q + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.15

Multiply $192$ by $- 1$ .

$64 p^{6} - 192 p^{5} q + 15 {(2 p)}^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.16

Apply the product rule to $2 p$ .

$64 p^{6} - 192 p^{5} q + 15 (2^{4} p^{4}) {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.17

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

$64 p^{6} - 192 p^{5} q + 15 (16 p^{4}) {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.18

Multiply $16$ by $15$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} {(- q)}^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.19

Apply the product rule to $- q$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} ({(- 1)}^{2} q^{2}) + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.20

Rewrite using the commutative property of multiplication.

$64 p^{6} - 192 p^{5} q + 240 \cdot {(- 1)}^{2} p^{4} q^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.21

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

$64 p^{6} - 192 p^{5} q + 240 \cdot 1 p^{4} q^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.22

Multiply $240$ by $1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 20 {(2 p)}^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.23

Apply the product rule to $2 p$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 20 (2^{3} p^{3}) {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.24

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

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 20 (8 p^{3}) {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.25

Multiply $8$ by $20$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 160 p^{3} {(- q)}^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.26

Apply the product rule to $- q$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 160 p^{3} ({(- 1)}^{3} q^{3}) + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.27

Rewrite using the commutative property of multiplication.

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 160 \cdot {(- 1)}^{3} p^{3} q^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.28

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

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} + 160 \cdot - 1 p^{3} q^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.29

Multiply $160$ by $- 1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 15 {(2 p)}^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.30

Apply the product rule to $2 p$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 15 (2^{2} p^{2}) {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.31

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

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 15 (4 p^{2}) {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.32

Multiply $4$ by $15$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} {(- q)}^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.33

Apply the product rule to $- q$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} ({(- 1)}^{4} q^{4}) + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.34

Rewrite using the commutative property of multiplication.

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 \cdot {(- 1)}^{4} p^{2} q^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.35

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

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 \cdot 1 p^{2} q^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.36

Multiply $60$ by $1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 6 {(2 p)}^{1} {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.37

Simplify.

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 6 (2 p) {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.38

Multiply $2$ by $6$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 12 p {(- q)}^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.39

Apply the product rule to $- q$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 12 p ({(- 1)}^{5} q^{5}) + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.40

Rewrite using the commutative property of multiplication.

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 12 \cdot {(- 1)}^{5} p q^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.41

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

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} + 12 \cdot - 1 p q^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.42

Multiply $12$ by $- 1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} - 12 p q^{5} + 1 {(2 p)}^{0} {(- q)}^{6}$

Step 4.43

Multiply ${(2 p)}^{0}$ by $1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} - 12 p q^{5} + {(2 p)}^{0} {(- q)}^{6}$

Step 4.44

Apply the product rule to $2 p$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} - 12 p q^{5} + 2^{0} p^{0} {(- q)}^{6}$

Step 4.45

Anything raised to $0$ is $1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} - 12 p q^{5} + 1 p^{0} {(- q)}^{6}$

Step 4.46

Multiply $p^{0}$ by $1$ .

$64 p^{6} - 192 p^{5} q + 240 p^{4} q^{2} - 160 p^{3} q^{3} + 60 p^{2} q^{4} - 12 p q^{5} + p^{0} {(- q)}^{6}$

Step 4.47

Anything raised to $0$ is $1$ .

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

Step 4.48

Multiply ${(- q)}^{6}$ by $1$ .

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

Step 4.49

Apply the product rule to $- q$ .

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

Step 4.50

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

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

Step 4.51

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

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