Write in Standard Form (4x^2+x-2)(x^2+x+2)

$(4 x^{2} + x - 2) (x^{2} + x + 2)$

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

Expand $(4 x^{2} + x - 2) (x^{2} + x + 2)$ by multiplying each term in the first expression by each term in the second expression.

$4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x + x \cdot 2 - 2 x^{2} - 2 x - 2 \cdot 2$

Step 3

Simplify terms.

Combine the opposite terms in $4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x + x \cdot 2 - 2 x^{2} - 2 x - 2 \cdot 2$ .

Reorder the factors in the terms $x \cdot 2$ and $- 2 x$ .

$4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x + 2 x - 2 x^{2} - 2 x - 2 \cdot 2$

Subtract $2 x$ from $2 x$ .

$4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} + 0 - 2 \cdot 2$

Add $4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2}$ and $0$ .

$4 x^{2} x^{2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Simplify each term.

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

Move $x^{2}$ .

$4 (x^{2} x^{2}) + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

$4 x^{2 + 2} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Add $2$ and $2$ .

$4 x^{4} + 4 x^{2} x + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

Move $x$ .

$4 x^{4} + 4 (x \cdot x^{2}) + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

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

$4 x^{4} + 4 (x^{1} x^{2}) + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

$4 x^{4} + 4 x^{1 + 2} + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Add $1$ and $2$ .

$4 x^{4} + 4 x^{3} + 4 x^{2} \cdot 2 + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Multiply $2$ by $4$ .

$4 x^{4} + 4 x^{3} + 8 x^{2} + x \cdot x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

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

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

$4 x^{4} + 4 x^{3} + 8 x^{2} + x^{1} x^{2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

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

$4 x^{4} + 4 x^{3} + 8 x^{2} + x^{1 + 2} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Add $1$ and $2$ .

$4 x^{4} + 4 x^{3} + 8 x^{2} + x^{3} + x \cdot x - 2 x^{2} - 2 \cdot 2$

Multiply $x$ by $x$ .

$4 x^{4} + 4 x^{3} + 8 x^{2} + x^{3} + x^{2} - 2 x^{2} - 2 \cdot 2$

Multiply $- 2$ by $2$ .

$4 x^{4} + 4 x^{3} + 8 x^{2} + x^{3} + x^{2} - 2 x^{2} - 4$

Simplify by adding terms.

Add $4 x^{3}$ and $x^{3}$ .

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

Add $8 x^{2}$ and $x^{2}$ .

$4 x^{4} + 5 x^{3} + 9 x^{2} - 2 x^{2} - 4$

Subtract $2 x^{2}$ from $9 x^{2}$ .

$4 x^{4} + 5 x^{3} + 7 x^{2} - 4$

Write in Standard Form (4x^2+x-2)(x^2+x+2)

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