Simplify (x+1)(x-7)

$(x + 1) (x - 7)$

Step 1

Expand $(x + 1) (x - 7)$ using the FOIL Method.

Apply the distributive property.

$x (x - 7) + 1 (x - 7)$

Apply the distributive property.

$x \cdot x + x \cdot - 7 + 1 (x - 7)$

Apply the distributive property.

$x \cdot x + x \cdot - 7 + 1 x + 1 \cdot - 7$

$x \cdot x + x \cdot - 7 + 1 x + 1 \cdot - 7$

Step 2

Simplify and combine like terms.

Simplify each term.

Multiply $x$ by $x$ .

$x^{2} + x \cdot - 7 + 1 x + 1 \cdot - 7$

Move $- 7$ to the left of $x$ .

$x^{2} - 7 \cdot x + 1 x + 1 \cdot - 7$

Multiply $x$ by $1$ .

$x^{2} - 7 x + x + 1 \cdot - 7$

Multiply $- 7$ by $1$ .

$x^{2} - 7 x + x - 7$

$x^{2} - 7 x + x - 7$

Add $- 7 x$ and $x$ .

$x^{2} - 6 x - 7$

$x^{2} - 6 x - 7$

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