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

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.

Solve for

.

Is your solution a real number?Is it possible for the square or absolute value of a number to be negative?

No real solution,

must be positive or zero.Refer to part (a) for help.

Refer to part (b) for help.