Simplify (3x-2)(3x+2)

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Algebra

$(3 x - 2) (3 x + 2)$

Expand $(3 x - 2) (3 x + 2)$ using the FOIL Method.

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Apply the distributive property.

$3 x (3 x + 2) - 2 (3 x + 2)$

Apply the distributive property.

$3 x (3 x) + 3 x \cdot 2 - 2 (3 x + 2)$

Apply the distributive property.

$3 x (3 x) + 3 x \cdot 2 - 2 (3 x) - 2 \cdot 2$

Simplify terms.

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Combine the opposite terms in $3 x (3 x) + 3 x \cdot 2 - 2 (3 x) - 2 \cdot 2$ .

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Reorder the factors in the terms $3 x \cdot 2$ and $- 2 (3 x)$ .

$3 x (3 x) + 2 \cdot 3 x - 2 \cdot 3 x - 2 \cdot 2$

Subtract $2 \cdot 3 x$ from $2 \cdot 3 x$ .

$3 x (3 x) + 0 - 2 \cdot 2$

Add $3 x (3 x)$ and $0$ .

$3 x (3 x) - 2 \cdot 2$

Simplify each term.

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Multiply $x$ by $x$ .

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

Multiply $3$ by $3$ .

$9 x^{2} - 2 \cdot 2$

Multiply $- 2$ by $2$ .

$9 x^{2} - 4$

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