### 13.3 Completing the Square in Quadratic Expressions

Problem #

Problem Statement

Problems Similar To

1.

What should be added to the expression to complete the square?

$$x^{2}+16x$$

2.

What should be added to the expression to complete the square?

$$x^{2}-9x$$

3.

What should be added to the expression to complete the square?

$$2x^{2}+12x$$

4.

What should be added to the expression to complete the square?

$$4x^{2}-6x$$