**Algebra Review - Multiplying Polynomials**

**1. Multiplying (x + y) and (x - y)**

This is the basic way to do it.

Use a method called **FOIL**. First multiply
the first terms, which are **x** and **x** and you get **x ^{2}**.
Then multiply the

So remember the basic rule: .

**2. More Binomial Multiplication**

Here are some basic examples:

**3. Exponents and Products**

5 · 5 · 5 · 5 = 5^{4
}x · x · x · x · x · x = x^{6
}(-y)(-y) = (-y)^{2}

And so on.

Memorize the following rule. When you multiply powers where the base (the big size number) are the same, you just add the exponents:

Some examples: |

**3. Multiplying Polynomials and Monomials**

To multiply the following, just multiply the outside term with the first term, then the second term. The examples should be enough for you to understand.

**4. Squaring Binomials**

Another basic rule to remember when squaring
this: (x + y)^{2}