1.   Factor x2 - y4
    A. (x - y2)(x + y2) B. (x - y2)(x - y2)
    C. (x + y)(xy) D. (x + y2)(x + y)(xy)
    Hint

  2.   Factor 81x2 – 225.
    A. 9(9x – 5)(9x + 5) B. 9(9x – 25)(9x + 25)
    C. 9(3x – 5)(3x + 5) D. It is prime.
    Hint

  3.   Solve the equation x2 x + = 0.
    A. B.
    C. D.
    Hint

  4.   Solve the following: (q + 2)2 = 25.
    A. {–3, 3} B. {3}
    C. {–7, 3} D. {–7}
    Hint

  5.   Solve the following: y2 + 6y + 9 = 49.
    A. {10, –4} B. {7, –7}
    C. {7} D. {–10, 4}
    Hint



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