1.   Expand (a + 2b)4.
    A. a4 + 8a3b + 24a2b2 + 4ab3 + b4
    B. a4 + 8a3b + 24a2b2 + 32ab3 + 16b4
    C. a4 + 4a3b + 12a2b2 + 8ab3 + b4
    D. a4 + 8a3b + 24a2b2 + 8ab3 + b4
    Hint

  2.   Use Pascal's Triangle to expand (a - x)3.
    A. a3 + 3a2x - 3ax2 + x3 B. a3 - 3a2x - 3ax2 - x3
    C. a3 - 3a2x + 3ax2 - x3 D. a3 + 3a2x + 3ax2 + x3
    Hint

  3.   Simplify .
    A. n B.
    C. n + 1 D. n + 1
    Hint

  4.   Evaluate
    A. 126 B. 1
    C. 504 D. 252
    Hint

  5.   Which of the following is an example of an expression whose seventh term in its binomial expansion is 1716x7y6?
    A. (2x + y)11 B. (x + 3y)12
    C. (x + y)13 D. (x + y)14
    Hint



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