### Example 1

Solve by completing the square.

*x*^{2} – 3*x* – 5 = 0

### Example 2

Solve by completing the square.

3*x*^{2} + 6*x* + 3 = 0

### Example 3

Solve by completing the square.

*x*^{2} + 2*x* – 3 = 0

### Example 4

Solve by completing the square.

### Example 5

Solve by completing the square.

*x*^{2} + 7*x* – 1 = 0