An illustration showing how to square binomial (a + b). (a + b)² = a² + 2ab + b².

Squaring Binomial (a + b)

An illustration showing how to square binomial (a + b). (a + b)² = a² + 2ab + b².

An illustration showing how to square binomial (a - b). (a - b)² = a² - 2ab + b².

Squaring Binomial (a - b)

An illustration showing how to square binomial (a - b). (a - b)² = a² - 2ab + b².