1.   Solve  x2 - 6x + 25 = 0.
    A. -3 ± 4i B. 6 ± 8i
    C. D. 3 ± 4i
    Hint

  2.   Solve 2x2 - 4x + 3 = 0.
    A. B.
    C. D.
    Hint

  3.   Suppose a ball is thrown straight up at a speed of 50 feet per second. The time in seconds that it takes for the ball to hit the ground can be found by solving the equation 5 + 50t - 16t2 = 0. Approximately how long does it take for the ball to hit the ground?
    A. 4.8 s B. 0.1 s
    C. -0.1 s D. 3.2 s
    Hint

  4.   Solve x2 + 14x + 49 = 0 by using the quadratic formula.
    A. 3, 8 B. 6, 16
    C. –3, –8 D. 7, –18
    Hint

  5.   Solve x2 + 14x + 49 = 0 by using the quadratic formula.
    A. –6, –8 B. 6, 8
    C. –7 D. 7
    Hint



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