Binomials are the sum or difference of two terms in an algebraic expression. Here you learn how to multiply them using FOIL method.

## Related Topics

- How to Multiply Monomials
- How to Multiply and Dividing Monomials
- How to Multiply a Polynomial and a Monomial
- How to Factor Trinomials
- How to Add and Subtract Polynomials

## Step by step guide to Multiplying Binomials

- The sum or the difference of two terms in an algebraic expression is a binomial.
- Use “
**FOIL**” (**First–Out–In–Last**) to multiply Binomials.

\(\color{blue}{(x+a)(x+b)=x^2+(b+a)x+ab}\)

### Multiplying Binomials – Example 1:

Multiply Binomials. \((x+3)(x-2)=\)

**Solution:**

Use “**FOIL**”. (**First–Out–In–Last**): \((x+3)(x-2)=x^2−2x+3x−6 \)

Then simplify: \(x^2−2x+3x−6=x^2+x−6\)

### Multiplying Binomials – Example 2:

Multiply Binomials. \((x-4)(x-2)=\)

**Solution:**

Use “**FOIL**”. (**First–Out–In–Last**):

\((x-4)(x-2)=x^2-2x-4x+8 \)

Then simplify: \(x^2-6x+8\)

### Multiplying Binomials – Example 3:

Multiply Binomials. \((x-2)(x+2)=\)

**Solution:**

Use “**FOIL**”. (**First–Out–In–Last**):

\( (x-2)(x+2)=x^2+2x-2x-4 \)

Then simplify: \(x^2+2x-2x-4=x^2-4\)

### Multiplying Binomials – Example 4:

Multiply Binomials. \((x+5)(x-2)=\)

**Solution:**

Use “**FOIL**”. (**First–Out–In–Last**):

\((x+5)(x-2)=x^2-2x+5x-10 \)

Then simplify: \(x^2-2x+5x-10=x^2+3x-10\)

## Exercises for Multiplying Binomials

### Multiply.

- \(\color{blue}{ (3x – 2) (4x + 2)}\)
- \(\color{blue}{(2x – 5) (x + 7)}\)
- \(\color{blue}{ (x + 2) (x + 8)}\)
- \(\color{blue}{ (x^2 + 2) (x^2 – 2)}\)
- \(\color{blue}{ (x – 2) (x + 4)}\)
- \(\color{blue}{ (x – 8) (2x + 8)}\)

### Download Multiplying Binomials Worksheet

- \(\color{blue}{12x^2 – 2x – 4 }\)
- \(\color{blue}{2x^2 + 9x – 35 }\)
- \(\color{blue}{ x^2 + 10x + 16}\)
- \(\color{blue}{x^4 – 4 }\)
- \(\color{blue}{x^2 + 2x – 8 }\)
- \(\color{blue}{2x^2 – 8x – 64 }\)