Simplify (x+h)(x+h)

$(x + h) (x + h)$

Step 1

Expand $(x + h) (x + h)$ using the FOIL Method.

Apply the distributive property.

$x (x + h) + h (x + h)$

Apply the distributive property.

$x \cdot x + x h + h (x + h)$

Apply the distributive property.

$x \cdot x + x h + h x + h \cdot h$

$x \cdot x + x h + h x + h \cdot h$

Step 2

Simplify and combine like terms.

Simplify each term.

Multiply $x$ by $x$ .

$x^{2} + x h + h x + h \cdot h$

Multiply $h$ by $h$ .

$x^{2} + x h + h x + h^{2}$

$x^{2} + x h + h x + h^{2}$

Add $x h$ and $h x$ .

Reorder $x$ and $h$ .

$x^{2} + h x + h x + h^{2}$

Add $h x$ and $h x$ .

$x^{2} + 2 h x + h^{2}$

$x^{2} + 2 h x + h^{2}$

$x^{2} + 2 h x + h^{2}$

Step 3

Move $x^{2}$ .

$2 h x + h^{2} + x^{2}$

Step 4

Reorder $2 h x$ and $h^{2}$ .

$h^{2} + 2 h x + x^{2}$

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