Special products (shorter, easier version)

Front

What is the formula for the difference of squares?

Back

a² - b² = (a - b)(a + b)

Front

What is the formula for the square of a binomial (a - b)?

Back

(a - b)² = a² - 2ab + b²

Front

What is the formula for the square of a binomial (a + b)?

Back

(a + b)² = a² + 2ab + b²

Front

What is the product of (2x - 5)(2x + 5)?

Back

(2x)² - (5)² = 4x² - 25

Front

What is the product of (9x - 4)²?

Back

(9x)² - 2(9x)(4) + (4)² = 81x² - 72x + 16

Front

What is the product of (9x + 4)²?

Back

(9x)² + 2(9x)(4) + (4)² = 81x² + 72x + 16

Front

What is the formula for the product of two binomials (a + b)(c + d)?

Back

ac + ad + bc + bd

Front

What is the formula for the product of two binomials (a - b)(c - d)?

Back

ac - ad - bc + bd

Front

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

Back

a² - b²

Front

What is the expanded form of (x + 3)(x + 2)?

Back

x² + 5x + 6