# Equations and Inequalities

# Keeping Both Solutions Exercises

### Example 1

How many solutions does the equation *z*^{2} = -25 have? If it has solutions, what are they?

### Example 2

How many solutions does the equation *y*^{2} - 3 = 13 have? If it has solutions, what are they?

### Example 3

How many solutions does the equation *x*^{2} = 0 have? If it has solutions, what are they?