Multiplying binomials the Break up out of jail method This is called the Break up out of jail method

Multiplying binomials A binomial has two terms. We will be multiplying pairs of numbers.

Example 1 Multiplying binomials + -5 (x – 3) The (x – 5) must break up so they can break ( x – 3) out of jail.

Example 1 Multiplying binomials + -5 x² – 3x + -5x + 15 Now break out of jail.

Example 1 Multiplying binomials x² – 3x + -5x + 15 x² – 8x + 15 Combine like terms.

Example 1 Multiplying binomials x² – 8x + 15 Final Answer

Example 2 Multiplying binomials + 4 (x + 2) The (x + 4) must break up so they can break ( x + 2) out of jail.

Example 2 Multiplying binomials + 4 x² + 2x + 4x + 8 Now break out of jail.

Example 2 Multiplying binomials x² + 2x + 4x + 8 x² + 6x + 8 Combine like terms.

Example 2 Multiplying binomials x² + 6x + 8 Final Answer

Multiplying binomials Your final answer should always have an x² first and a whole number at the end. This is called standard form.

Multiplying binomials Try this one on your own: (x – 6)(x + 2) When everyone on your team is finished, click to check your final answer.

Multiplying binomials x² - 4x - 12 Final Answer