Basic Math Examples

$((3 m - 5 n) + p) ((3 m - 5 n) - p)$

Step 1

Expand $(3 m - 5 n + p) (3 m - 5 n - p)$ by multiplying each term in the first expression by each term in the second expression.

$3 m (3 m) + 3 m (- 5 n) + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2

Simplify terms.

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Step 2.1

Simplify each term.

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Step 2.1.1

Rewrite using the commutative property of multiplication.

$3 \cdot 3 m \cdot m + 3 m (- 5 n) + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.2

Multiply $m$ by $m$ by adding the exponents.

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Step 2.1.2.1

Move $m$ .

$3 \cdot 3 (m \cdot m) + 3 m (- 5 n) + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.2.2

Multiply $m$ by $m$ .

$3 \cdot 3 m^{2} + 3 m (- 5 n) + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.3

Multiply $3$ by $3$ .

$9 m^{2} + 3 m (- 5 n) + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.4

Rewrite using the commutative property of multiplication.

$9 m^{2} + 3 \cdot - 5 m n + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.5

Multiply $3$ by $- 5$ .

$9 m^{2} - 15 m n + 3 m (- p) - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.6

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n + 3 \cdot - 1 m p - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.7

Multiply $3$ by $- 1$ .

$9 m^{2} - 15 m n - 3 m p - 5 n (3 m) - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.8

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 5 \cdot 3 n m - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.9

Multiply $- 5$ by $3$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m - 5 n (- 5 n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.10

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 15 n m - 5 \cdot - 5 n \cdot n - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.11

Multiply $n$ by $n$ by adding the exponents.

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Step 2.1.11.1

Move $n$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m - 5 \cdot - 5 (n \cdot n) - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.11.2

Multiply $n$ by $n$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m - 5 \cdot - 5 n^{2} - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.12

Multiply $- 5$ by $- 5$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} - 5 n (- p) + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.13

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} - 5 \cdot - 1 n p + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.14

Multiply $- 5$ by $- 1$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + p (3 m) + p (- 5 n) + p (- p)$

Step 2.1.15

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m + p (- 5 n) + p (- p)$

Step 2.1.16

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m - 5 p n + p (- p)$

Step 2.1.17

Rewrite using the commutative property of multiplication.

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m - 5 p n - p \cdot p$

Step 2.1.18

Multiply $p$ by $p$ by adding the exponents.

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Step 2.1.18.1

Move $p$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m - 5 p n - (p \cdot p)$

Step 2.1.18.2

Multiply $p$ by $p$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m - 5 p n - p^{2}$

Step 2.2

Combine the opposite terms in $9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 p m - 5 p n - p^{2}$ .

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Step 2.2.1

Reorder the factors in the terms $- 3 m p$ and $3 p m$ .

$9 m^{2} - 15 m n - 3 m p - 15 n m + 25 n^{2} + 5 n p + 3 m p - 5 p n - p^{2}$

Step 2.2.2

Add $- 3 m p$ and $3 m p$ .

$9 m^{2} - 15 m n - 15 n m + 25 n^{2} + 5 n p + 0 - 5 p n - p^{2}$

Step 2.2.3

Add $9 m^{2} - 15 m n - 15 n m + 25 n^{2} + 5 n p$ and $0$ .

$9 m^{2} - 15 m n - 15 n m + 25 n^{2} + 5 n p - 5 p n - p^{2}$

Step 2.2.4

Reorder the factors in the terms $5 n p$ and $- 5 p n$ .

$9 m^{2} - 15 m n - 15 n m + 25 n^{2} + 5 n p - 5 n p - p^{2}$

Step 2.2.5

Subtract $5 n p$ from $5 n p$ .

$9 m^{2} - 15 m n - 15 n m + 25 n^{2} + 0 - p^{2}$

Step 2.2.6

Add $9 m^{2} - 15 m n - 15 n m + 25 n^{2}$ and $0$ .

$9 m^{2} - 15 m n - 15 n m + 25 n^{2} - p^{2}$

Step 3

Subtract $15 n m$ from $- 15 m n$ .

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Step 3.1

Move $n$ .

$9 m^{2} - 15 m n - 15 m n + 25 n^{2} - p^{2}$

Step 3.2

Subtract $15 m n$ from $- 15 m n$ .

$9 m^{2} - 30 m n + 25 n^{2} - p^{2}$