Algebra Examples

$7 x y^{2} (0.5 x + 1.4 y - 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1

Simplify each term.

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Step 1.1

Apply the distributive property.

$7 x y^{2} (0.5 x) + 7 x y^{2} (1.4 y) + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2

Simplify.

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Step 1.2.1

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

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Step 1.2.1.1

Move $x$ .

$7 (x \cdot x) y^{2} \cdot 0.5 + 7 x y^{2} (1.4 y) + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.1.2

Multiply $x$ by $x$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{2} (1.4 y) + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.2

Multiply $y^{2}$ by $y$ by adding the exponents.

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Step 1.2.2.1

Move $y$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x (y \cdot y^{2}) \cdot 1.4 + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.2.2

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

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Step 1.2.2.2.1

Raise $y$ to the power of $1$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x (y^{1} y^{2}) \cdot 1.4 + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.2.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{1 + 2} \cdot 1.4 + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.2.3

Add $1$ and $2$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{3} \cdot 1.4 + 7 x y^{2} (- 0.3 x^{2}) - 2.1 x^{2} y (4 y - x y)$

Step 1.2.3

Multiply $x$ by $x^{2}$ by adding the exponents.

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Step 1.2.3.1

Move $x^{2}$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{3} \cdot 1.4 + 7 (x^{2} x) y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.2.3.2

Multiply $x^{2}$ by $x$ .

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Step 1.2.3.2.1

Raise $x$ to the power of $1$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{3} \cdot 1.4 + 7 (x^{2} x^{1}) y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.2.3.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{3} \cdot 1.4 + 7 x^{2 + 1} y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.2.3.3

Add $2$ and $1$ .

$7 x^{2} y^{2} \cdot 0.5 + 7 x y^{3} \cdot 1.4 + 7 x^{3} y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.3

Simplify each term.

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Step 1.3.1

Multiply $0.5$ by $7$ .

$3.5 x^{2} y^{2} + 7 x y^{3} \cdot 1.4 + 7 x^{3} y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.3.2

Multiply $1.4$ by $7$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} + 7 x^{3} y^{2} \cdot - 0.3 - 2.1 x^{2} y (4 y - x y)$

Step 1.3.3

Multiply $- 0.3$ by $7$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y (4 y - x y)$

Step 1.4

Apply the distributive property.

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y (4 y) - 2.1 x^{2} y (- x y)$

Step 1.5

Multiply $y$ by $y$ by adding the exponents.

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Step 1.5.1

Move $y$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} (y \cdot y) \cdot 4 - 2.1 x^{2} y (- x y)$

Step 1.5.2

Multiply $y$ by $y$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y^{2} \cdot 4 - 2.1 x^{2} y (- x y)$

Step 1.6

Multiply $x^{2}$ by $x$ by adding the exponents.

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Step 1.6.1

Move $x$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y^{2} \cdot 4 - 2.1 (x \cdot x^{2}) y (- 1 y)$

Step 1.6.2

Multiply $x$ by $x^{2}$ .

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Step 1.6.2.1

Raise $x$ to the power of $1$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y^{2} \cdot 4 - 2.1 (x^{1} x^{2}) y (- 1 y)$

Step 1.6.2.2

Use the power rule $a^{m} a^{n} = a^{m + n}$ to combine exponents.

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y^{2} \cdot 4 - 2.1 x^{1 + 2} y (- 1 y)$

Step 1.6.3

Add $1$ and $2$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 2.1 x^{2} y^{2} \cdot 4 - 2.1 x^{3} y (- 1 y)$

Step 1.7

Simplify each term.

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Step 1.7.1

Multiply $4$ by $- 2.1$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 8.4 x^{2} y^{2} - 2.1 x^{3} y (- 1 y)$

Step 1.7.2

Multiply $y$ by $y$ by adding the exponents.

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Step 1.7.2.1

Move $y$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 8.4 x^{2} y^{2} - 2.1 x^{3} (y \cdot y) \cdot - 1$

Step 1.7.2.2

Multiply $y$ by $y$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 8.4 x^{2} y^{2} - 2.1 x^{3} y^{2} \cdot - 1$

Step 1.7.3

Multiply $- 1$ by $- 2.1$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 2.1 x^{3} y^{2} - 8.4 x^{2} y^{2} + 2.1 x^{3} y^{2}$

Step 2

Add $- 2.1 x^{3} y^{2}$ and $2.1 x^{3} y^{2}$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} + 0 x^{3} y^{2} - 8.4 x^{2} y^{2}$

Step 3

Simplify each term.

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Step 3.1

Multiply $0$ by $x^{3}$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} + 0 y^{2} - 8.4 x^{2} y^{2}$

Step 3.2

Multiply $0$ by $y^{2}$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} + 0 - 8.4 x^{2} y^{2}$

Step 4

Simplify by adding terms.

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Step 4.1

Add $3.5 x^{2} y^{2} + 9.8 x y^{3}$ and $0$ .

$3.5 x^{2} y^{2} + 9.8 x y^{3} - 8.4 x^{2} y^{2}$

Step 4.2

Subtract $8.4 x^{2} y^{2}$ from $3.5 x^{2} y^{2}$ .

$- 4.9 x^{2} y^{2} + 9.8 x y^{3}$