1.   The roots of  x2 + 4x + 7 are________.
    A. real and rational B. imaginary
    C. real and imaginary D. real and irrational
    Hint

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

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

  4.   If a perfect square is equal to a constant, what is the best method to solve the quadratic equation?
    A. Quadratic Formula B. Square Root Property
    C. Factoring D. Completing the Square
    Hint

  5.   Solve by using the quadratic formula.
    A. B.
    C. D.
    Hint



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