1.   Which statement below is not correct?
    A. (x + 2)2 = x2 + 4x + 4
    B. (2b - 5)2 = 4b2 - 20b + 25
    C. (5y - 7)2 = 25y2 + 70y + 49
    D. (3a + 1)2 = 9a2 + 6a + 1
    Hint

  2.   Find the product (3a + b)2.
    A. 9a2 - b2 B. 9a2 + 6ab + b2
    C. 6a2 + 3ab + b2 D. 6a2 - 6ab + b2
    Hint

  3.   Find the product (6 + 3b)(6 – 3b).
    A. 36 + 36b + 9b2 B. 36 - 9b2
    C. 36 + 9b2 D. 36 + 36b - 9b2
    Hint

  4.   Find the product of x, x – 2, and x + 2.
    A. x3 + 4x B. x3 - 4
    C. x3 - 4x D. x3 + 4x2 + 4x
    Hint

  5.   Which equation represents the product of a sum and a difference?
    A. (ab)2 = a2 – 2ab + b2
    B. (a + b)(ab) = a2b2
    C. (a + b)2 = a2 + 2ab + b2
    D. (a + b)(ab) = a2 + b2
    Hint



Glencoe
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