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Multiple Choice

What is the formula for the sum of two cubes, A³ + B³?

• (A + B)(A² - AB + B²)

• (A - B)(A² + AB + B²)

• (A + B)(A² + AB + B²)

• (A - B)(A² - AB + B²)

Multiple Choice

What is the formula for the sum of two cubes, A and B?

• A^3 + B^3 = (A + B)(A^2 - AB + B^2)

• A^3 + B^3 = (A - B)(A^2 + AB + B^2)

• A^3 + B^3 = (A + B)(A^2 + AB + B^2)

• A^3 + B^3 = (A - B)(A^2 - AB + B^2)

Multiple Choice

What is the simplified form of the expression x³ + 8y³ - (x + 2y)(x² - 2xy + 4y²)?

• x³ + 8y³

• x³ + 8y³ - (x + 2y)

• 0

• (x + 2y)(x² - 2xy + 4y²)

Multiple Choice

What is the formula for the difference of cubes as shown in the image?

• a^3 - b^3 = (a - b)(a^2 + ab + b^2)

• a^3 - b^3 = (a + b)(a^2 - ab + b^2)

• a^3 - b^3 = (a - b)(a^2 - ab + b^2)

• a^3 - b^3 = (a + b)(a^2 + ab + b^2)

Multiple Choice

What is the formula for the difference of two cubes as shown in the image?

• A^3 - B^3 = (A - B)(A^2 + AB + B^2)

• A^3 + B^3 = (A + B)(A^2 - AB + B^2)

• A^3 - B^3 = (A + B)(A^2 - AB + B^2)

• A^3 + B^3 = (A - B)(A^2 + AB - B^2)

Open Ended

Theo em, bạn Mai làm đúng hay sai? Nếu sai, hãy sửa sai

Multiple Choice

Which of the following expressions is a factor of this polynomial?

• (n + 3)
• (5n + 2)
• (5n - 1)
• (n - 2)

Open Ended

For number 15, you need to use the formula for the sum of cubes. What is the formula for the sum of cubes?

Hint: This formula will be provided to you on your formula/reference sheet during your tests/exams.