Multiplying Special Case Polynomials Quiz

What is the result of (a - b)(a + b)?

• a^2 + b^2

• a^2 - b^2

• a^2 + 2ab + b^2

• 2ab

In problem 13, if a = 3 and b = 7b^2, what is the result of a^2 - b^2?

• 49b^4 - 9

• 49b^2 - 9

• 9 - 49b^4

• 9 + 49b^4

For problem 15, if a = 2 and b = b, what is the expanded form of (a + b)^2?

• 4b + b^2

• 4 + 2b + b^2

• 4 + b^2

• 4 + 4b + b^2

In problem 17, what is the result of (8a^2)^2 + 2^2?

• 64a^4 + 4

• 8a^2 + 4

• 64a^2 + 4

• 8a^4 + 4

What is the expanded form of (a + b)^2 when a = 4a and b = 7?

• 16a^2 + 7

• 16a^2 + 56a + 49

• 16a^2 + 49

• 16a^2 + 56a

What is the result of (a - b)^2 when a = 2n and b = 7?

• 4n^2 - 28n + 49

• 4n^2 + 28n + 49

• 4n^2 - 49

• 4n^2 + 49

In problem 21, if a = 7u and b = 4v, what is the result of a^2 - b^2?

• 49u^2 - 16v^2

• 49u^2 + 16v^2

• 16v^2 - 49u^2

• 49u^2 - 4v^2

For problem 23, what is the result of (-9x^2)^2 - 2(-9x^2)(10y) + (10y)^2?

• 81x^4 + 180x^2y + 100y^2

• 81x^4 - 180x^2y + 100y^2

• 81x^4 + 180x^2y

• 81x^4 + 100y^2

In problem 25, if a = 7u and b = 6v, what is the result of a^2 - b^2?

• 36v^2 - 49u^2

• 49u^2 - 6v^2

• 49u^2 + 36v^2

• 49u^2 - 36v^2

What is the expanded form of (a - b)^2 when a = -6x and b = 7y^2?

• 36x^2 + 49y^4

• 36x^2 - 84xy^2 + 49y^4

• 36x^2 + 84xy^2 + 49y^4

• 36x^2 + 84xy^2