1.   Use the quadratic formula to solve x2 + 2x - 8 = 0.
    A. -4, 2 B. -4, -2
    C. -4 D. -2
    Hint

  2.   Use the quadratic formula to solve 6x2 - x - 1 = 0.
    A. B.
    C. D.
    Hint

  3.   Use the quadratic formula to solve 2x2 + 7x + 4 = 0. Approximate the solutions to the nearest hundredth.
    A. 1.28, 3.66 B. -5.56, -1.44
    C. -2.78, -0.72 D. -3.35, -0.15
    Hint

  4.   Use the quadratic formula to solve 3y2 + 2 = 8y. Approximate the solutions to the nearest hundredth.
    A. 0.43, 2.87 B. 0.28, 2.39
    C. -0.64, 1.32 D. 0.56, 4.77
    Hint

  5.   Use the quadratic formula to solve x2 + 4x + 5 = 0.
    A. -1 B. -1, -4
    C. 5 D.
    Hint