1.   Find the value of c that makes x2 + 16x + c a perfect square.
    A. 64 B. -64
    C. 8 D. 16
    Hint
  2.   Find the value of b that makes x2 + bx + 36 a perfect square.
    A. 324 B. 6
    C. 12 D. -12, 12
    Hint
  3.   Solve x2 - 4x + 1 = 0 by completing the square.
    A. B.
    C. 1, 3 D.
    Hint
  4.   Solve a2 - a - 20 = 0 by completing the square.
    A. B. -5, 4
    C. D. -4, 5
    Hint
  5.   Solve 2z2 + z - 4 = 0 by completing the square.
    A. -2, 1 B.
    C. D.
    Hint