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12-84.
  1. Multiple Choice: For which of the following equations or inequalities is x = −1 a solution? Homework Help ✎

    1. (x + 3)2 > 4

    2. 12-84b

    3. 12-84c

    4. x2 + 5x + 6 = 0

Substitute −1 into each of the equations.

Which equation does −1 make true?

(b)