3.3 Polynomial Identities

The following is the difference of cubes identity:

a²-b² = (a + b)(a - b)

• TRUE

• FALSE

The following is the sum of a square identity:

(a + b)² = a² + 2ab + b²

• TRUE

• FALSE

The difference of a square identity tells us that a² - b² =

• a - b

• a + b

• (a+b)(a-b)

The sum of a cubes identity tells us that a³ + b³ =

• a + b

Describe something you notice or a pattern about pascal's triangle.

Which are the coefficients of (a+b)⁷ if it was expanded?

• cannot determine

• 1, 6, 15, 20, 15, 6, 1

• 1, 7, 21, 35, 35, 21, 7, 1

• 1, 1