Algebra Examples

$(12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4) - (7 x^{5} + 2 x^{4} - 12 + 6 x - 5 x^{3} + x^{2})$

Step 1

To write a polynomial in standard form, simplify and then arrange the terms in descending order.

$a x^{2} + b x + c$

Step 2

Simplify each term.

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Step 2.1

Apply the distributive property.

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - (7 x^{5}) - (2 x^{4}) - - 12 - (6 x) - (- 5 x^{3}) - x^{2}$

Step 2.2

Simplify.

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Step 2.2.1

Multiply $7$ by $- 1$ .

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 7 x^{5} - (2 x^{4}) - - 12 - (6 x) - (- 5 x^{3}) - x^{2}$

Step 2.2.2

Multiply $2$ by $- 1$ .

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 7 x^{5} - 2 x^{4} - - 12 - (6 x) - (- 5 x^{3}) - x^{2}$

Step 2.2.3

Multiply $- 1$ by $- 12$ .

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 7 x^{5} - 2 x^{4} + 12 - (6 x) - (- 5 x^{3}) - x^{2}$

Step 2.2.4

Multiply $6$ by $- 1$ .

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 7 x^{5} - 2 x^{4} + 12 - 6 x - (- 5 x^{3}) - x^{2}$

Step 2.2.5

Multiply $- 5$ by $- 1$ .

$12 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 7 x^{5} - 2 x^{4} + 12 - 6 x + 5 x^{3} - x^{2}$

Step 3

Simplify by adding terms.

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Step 3.1

Subtract $7 x^{5}$ from $12 x^{5}$ .

$5 x^{5} + 10 x^{3} - 8 x^{4} - 6 x + 4 - 2 x^{4} + 12 - 6 x + 5 x^{3} - x^{2}$

Step 3.2

Add $10 x^{3}$ and $5 x^{3}$ .

$5 x^{5} + 15 x^{3} - 8 x^{4} - 6 x + 4 - 2 x^{4} + 12 - 6 x - x^{2}$

Step 3.3

Subtract $2 x^{4}$ from $- 8 x^{4}$ .

$5 x^{5} + 15 x^{3} - 10 x^{4} - 6 x + 4 + 12 - 6 x - x^{2}$

Step 3.4

Subtract $6 x$ from $- 6 x$ .

$5 x^{5} + 15 x^{3} - 10 x^{4} - 12 x + 4 + 12 - x^{2}$

Step 3.5

Simplify the expression.

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Step 3.5.1

Add $4$ and $12$ .

$5 x^{5} + 15 x^{3} - 10 x^{4} - 12 x + 16 - x^{2}$

Step 3.5.2

Move $16$ .

$5 x^{5} + 15 x^{3} - 10 x^{4} - 12 x - x^{2} + 16$

Step 3.5.3

Move $- 12 x$ .

$5 x^{5} + 15 x^{3} - 10 x^{4} - x^{2} - 12 x + 16$

Step 3.5.4

Move $15 x^{3}$ .

$5 x^{5} - 10 x^{4} + 15 x^{3} - x^{2} - 12 x + 16$