Algebra Examples

$3 x z + (5 x + 3 z) (7 x - 2 x z + y - 4 z)$

Step 1

Simplify each term.

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Step 1.1

Expand $(5 x + 3 z) (7 x - 2 x z + y - 4 z)$ by multiplying each term in the first expression by each term in the second expression.

$3 x z + 5 x (7 x) + 5 x (- 2 x z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2

Simplify each term.

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Step 1.2.1

Rewrite using the commutative property of multiplication.

$3 x z + 5 \cdot 7 x \cdot x + 5 x (- 2 x z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.2

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

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Step 1.2.2.1

Move $x$ .

$3 x z + 5 \cdot 7 (x \cdot x) + 5 x (- 2 x z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.2.2

Multiply $x$ by $x$ .

$3 x z + 5 \cdot 7 x^{2} + 5 x (- 2 x z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.3

Multiply $5$ by $7$ .

$3 x z + 35 x^{2} + 5 x (- 2 x z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.4

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

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Step 1.2.4.1

Move $x$ .

$3 x z + 35 x^{2} + 5 (x \cdot x) (- 2 z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.4.2

Multiply $x$ by $x$ .

$3 x z + 35 x^{2} + 5 x^{2} (- 2 z) + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.5

Rewrite using the commutative property of multiplication.

$3 x z + 35 x^{2} + 5 \cdot - 2 x^{2} z + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.6

Multiply $5$ by $- 2$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y + 5 x (- 4 z) + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.7

Rewrite using the commutative property of multiplication.

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y + 5 \cdot - 4 x z + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.8

Multiply $5$ by $- 4$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 3 z (7 x) + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.9

Rewrite using the commutative property of multiplication.

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 3 \cdot 7 z x + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.10

Multiply $3$ by $7$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x + 3 z (- 2 x z) + 3 z y + 3 z (- 4 z)$

Step 1.2.11

Multiply $z$ by $z$ by adding the exponents.

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Step 1.2.11.1

Move $z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x + 3 (z \cdot z) (- 2 x) + 3 z y + 3 z (- 4 z)$

Step 1.2.11.2

Multiply $z$ by $z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x + 3 z^{2} (- 2 x) + 3 z y + 3 z (- 4 z)$

Step 1.2.12

Rewrite using the commutative property of multiplication.

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x + 3 \cdot - 2 z^{2} x + 3 z y + 3 z (- 4 z)$

Step 1.2.13

Multiply $3$ by $- 2$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x - 6 z^{2} x + 3 z y + 3 z (- 4 z)$

Step 1.2.14

Rewrite using the commutative property of multiplication.

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x - 6 z^{2} x + 3 z y + 3 \cdot - 4 z \cdot z$

Step 1.2.15

Multiply $z$ by $z$ by adding the exponents.

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Step 1.2.15.1

Move $z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x - 6 z^{2} x + 3 z y + 3 \cdot - 4 (z \cdot z)$

Step 1.2.15.2

Multiply $z$ by $z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x - 6 z^{2} x + 3 z y + 3 \cdot - 4 z^{2}$

Step 1.2.16

Multiply $3$ by $- 4$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 z x - 6 z^{2} x + 3 z y - 12 z^{2}$

Step 1.3

Add $- 20 x z$ and $21 z x$ .

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Step 1.3.1

Move $z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y - 20 x z + 21 x z - 6 z^{2} x + 3 z y - 12 z^{2}$

Step 1.3.2

Add $- 20 x z$ and $21 x z$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y + 1 x z - 6 z^{2} x + 3 z y - 12 z^{2}$

Step 1.4

Multiply $x$ by $1$ .

$3 x z + 35 x^{2} - 10 x^{2} z + 5 x y + x z - 6 z^{2} x + 3 z y - 12 z^{2}$

Step 2

Simplify by adding terms.

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Step 2.1

Add $3 x z$ and $x z$ .

$35 x^{2} - 10 x^{2} z + 5 x y + 4 x z - 6 z^{2} x + 3 z y - 12 z^{2}$

Step 2.2

Reorder.

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Step 2.2.1

Move $z^{2}$ .

$35 x^{2} - 10 x^{2} z + 5 x y + 4 x z - 6 x z^{2} + 3 z y - 12 z^{2}$

Step 2.2.2

Move $z$ .

$35 x^{2} - 10 x^{2} z + 5 x y + 4 x z - 6 x z^{2} + 3 y z - 12 z^{2}$

Step 2.2.3

Move $4 x z$ .

$35 x^{2} - 10 x^{2} z + 5 x y - 6 x z^{2} + 3 y z + 4 x z - 12 z^{2}$

Step 2.2.4

Move $35 x^{2}$ .

$- 10 x^{2} z + 5 x y - 6 x z^{2} + 3 y z + 35 x^{2} + 4 x z - 12 z^{2}$

Step 2.2.5

Move $5 x y$ .

$- 10 x^{2} z - 6 x z^{2} + 5 x y + 3 y z + 35 x^{2} + 4 x z - 12 z^{2}$