Simplify (1-a)(a-a^2)+(1+a)(1+a^2)-2a(1+a)(a-1)

$(1 - a) (a - a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Step 1

Simplify each term.

Expand $(1 - a) (a - a^{2})$ using the FOIL Method.

Apply the distributive property.

$1 (a - a^{2}) - a (a - a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Apply the distributive property.

$1 a + 1 (- a^{2}) - a (a - a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Apply the distributive property.

$1 a + 1 (- a^{2}) - a \cdot a - a (- a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Simplify and combine like terms.

Simplify each term.

Multiply $a$ by $1$ .

$a + 1 (- a^{2}) - a \cdot a - a (- a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Multiply $- a^{2}$ by $1$ .

$a - a^{2} - a \cdot a - a (- a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Multiply $a$ by $a$ by adding the exponents.

Move $a$ .

$a - a^{2} - (a \cdot a) - a (- a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Multiply $a$ by $a$ .

$a - a^{2} - a^{2} - a (- a^{2}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Rewrite using the commutative property of multiplication.

$a - a^{2} - a^{2} - 1 \cdot - 1 a \cdot a^{2} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

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

Move $a^{2}$ .

$a - a^{2} - a^{2} - 1 \cdot - 1 (a^{2} a) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

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

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

$a - a^{2} - a^{2} - 1 \cdot - 1 (a^{2} a^{1}) + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

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

$a - a^{2} - a^{2} - 1 \cdot - 1 a^{2 + 1} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Add $2$ and $1$ .

$a - a^{2} - a^{2} - 1 \cdot - 1 a^{3} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Multiply $- 1$ by $- 1$ .

$a - a^{2} - a^{2} + 1 a^{3} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Multiply $a^{3}$ by $1$ .

$a - a^{2} - a^{2} + a^{3} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Subtract $a^{2}$ from $- a^{2}$ .

$a - 2 a^{2} + a^{3} + (1 + a) (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Expand $(1 + a) (1 + a^{2})$ using the FOIL Method.

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 (1 + a^{2}) + a (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 \cdot 1 + 1 a^{2} + a (1 + a^{2}) - 2 a (1 + a) (a - 1)$

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 \cdot 1 + 1 a^{2} + a \cdot 1 + a \cdot a^{2} - 2 a (1 + a) (a - 1)$

Simplify each term.

Multiply $1$ by $1$ .

$a - 2 a^{2} + a^{3} + 1 + 1 a^{2} + a \cdot 1 + a \cdot a^{2} - 2 a (1 + a) (a - 1)$

Multiply $a^{2}$ by $1$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a \cdot 1 + a \cdot a^{2} - 2 a (1 + a) (a - 1)$

Multiply $a$ by $1$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a \cdot a^{2} - 2 a (1 + a) (a - 1)$

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

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

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

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{1} a^{2} - 2 a (1 + a) (a - 1)$

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

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{1 + 2} - 2 a (1 + a) (a - 1)$

Add $1$ and $2$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a (1 + a) (a - 1)$

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} + (- 2 a \cdot 1 - 2 a \cdot a) (a - 1)$

Multiply $- 2$ by $1$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} + (- 2 a - 2 a \cdot a) (a - 1)$

Multiply $a$ by $a$ by adding the exponents.

Move $a$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} + (- 2 a - 2 (a \cdot a)) (a - 1)$

Multiply $a$ by $a$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} + (- 2 a - 2 a^{2}) (a - 1)$

Expand $(- 2 a - 2 a^{2}) (a - 1)$ using the FOIL Method.

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a (a - 1) - 2 a^{2} (a - 1)$

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a \cdot a - 2 a \cdot - 1 - 2 a^{2} (a - 1)$

Apply the distributive property.

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a \cdot a - 2 a \cdot - 1 - 2 a^{2} a - 2 a^{2} \cdot - 1$

Simplify and combine like terms.

Simplify each term.

Multiply $a$ by $a$ by adding the exponents.

Move $a$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 (a \cdot a) - 2 a \cdot - 1 - 2 a^{2} a - 2 a^{2} \cdot - 1$

Multiply $a$ by $a$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} - 2 a \cdot - 1 - 2 a^{2} a - 2 a^{2} \cdot - 1$

Multiply $- 1$ by $- 2$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 a^{2} a - 2 a^{2} \cdot - 1$

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

Move $a$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 (a \cdot a^{2}) - 2 a^{2} \cdot - 1$

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

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

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 (a^{1} a^{2}) - 2 a^{2} \cdot - 1$

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

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 a^{1 + 2} - 2 a^{2} \cdot - 1$

Add $1$ and $2$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 a^{3} - 2 a^{2} \cdot - 1$

Multiply $- 1$ by $- 2$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{2} + 2 a - 2 a^{3} + 2 a^{2}$

Add $- 2 a^{2}$ and $2 a^{2}$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} + 2 a - 2 a^{3} + 0$

Add $2 a$ and $0$ .

$a - 2 a^{2} + a^{3} + 1 + a^{2} + a + a^{3} - 2 a^{3} + 2 a$

Step 2

Simplify by adding terms.

Add $a$ and $a$ .

$- 2 a^{2} + a^{3} + 1 + a^{2} + 2 a + a^{3} - 2 a^{3} + 2 a$

Add $- 2 a^{2}$ and $a^{2}$ .

$- a^{2} + a^{3} + 1 + 2 a + a^{3} - 2 a^{3} + 2 a$

Add $a^{3}$ and $a^{3}$ .

$- a^{2} + 2 a^{3} + 1 + 2 a - 2 a^{3} + 2 a$

Combine the opposite terms in $- a^{2} + 2 a^{3} + 1 + 2 a - 2 a^{3} + 2 a$ .

Subtract $2 a^{3}$ from $2 a^{3}$ .

$- a^{2} + 1 + 2 a + 0 + 2 a$

Add $- a^{2} + 1 + 2 a$ and $0$ .

$- a^{2} + 1 + 2 a + 2 a$

Add $2 a$ and $2 a$ .

$- a^{2} + 1 + 4 a$

Move $1$ .

$- a^{2} + 4 a + 1$

Simplify (1-a)(a-a^2)+(1+a)(1+a^2)-2a(1+a)(a-1)

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