Multiplying Binomials

Front

What is a binomial?

Back

A binomial is a polynomial with exactly two terms, such as (x + 5) or (3x - 2).

Front

What is the product of (a + b)(a - b)?

Back

The product is a² - b², known as the difference of squares.

Front

What is the formula for squaring a binomial (a + b)²?

Back

The formula is a² + 2ab + b².

Front

What is the formula for squaring a binomial (a - b)²?

Back

The formula is a² - 2ab + b².

Front

Multiply: (x + 3)(x + 2)

Back

The product is x² + 5x + 6.

Front

Multiply: (x - 4)(x + 4)

Back

The product is x² - 16, known as the difference of squares.

Front

What is the FOIL method?

Back

FOIL stands for First, Outside, Inside, Last; a method for multiplying two binomials.

Front

Multiply: (2x + 1)(3x + 5)

Back

The product is 6x² + 11x + 5.

Front

What is the result of (x - 7)(x + 7)?

Back

The result is x² - 49, known as the difference of squares.

Front

Multiply: (3x - 1)(x + 5)

Back

The product is 3x² + 14x - 5.