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

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

Step 1

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

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.

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

Step 2

Simplify terms.

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

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

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

Add $- 2 \cdot 3 x$ and $2 \cdot 3 x$ .

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

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

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

Simplify each term.

Rewrite using the commutative property of multiplication.

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

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

Move $x$ .

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

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 $- 2$ .

$9 x^{2} - 4$