Factoring and Simplifying Expressions

What is the pattern of signs for the sum of cubes?

• Plus, plus, minus

• Minus, plus, plus

• Plus, minus, plus

• Minus, minus, plus

Which of the following is not factorable?

• a^2 - b^2

• a^2 + b^2

• a^3 - b^3

• a^3 + b^3

How many products are obtained when verifying the formula for a^3 + b^3?

• Five

• Four

• Seven

• Six

What is the result of simplifying a^2b - a^2b?

• a^2b

• a^3

• 0

• b^2

What is the binomial factor when factoring x^3 - 27?

• x - 27

• x + 27

• x - 3

• x + 3

What is the trinomial factor when factoring x^3 - 27?

• x^2 + 3x + 9

• x^2 - 3x + 9

• x^2 + 3x - 9

• x^2 - 3x - 9

What is the greatest common factor in the expression 5x^3 + 625?

• 625

• 25

• 5

• 125

What is the binomial factor when factoring 5x^3 + 625?

• 5x - 5

• x + 5

• 5x + 5

• x - 5

What is the greatest common factor in the expression 8x^3 - 64?

• 2

• 4

• 8

• 16

What is the binomial factor when factoring 8x^3 - 64?

• 2x + 2

• x - 2

• x + 2

• 2x - 2