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Home > CCG > Chapter 12 > Lesson 12.2.1 > Problem 12-65


For each equation below, decide if the equation has any real number for the given variable. For each problem, explain how you know.

  1. Solve for .
    Is your solution a real number?

  2. Is it possible for the square or absolute value of a number to be negative?

    No real solution, must be positive or zero.

  3. Refer to part (a) for help.

  4. Refer to part (b) for help.