(3.22)Video_completing the Square part 1

What shape does the expression X plus 2 times X plus 2 represent?

• A square

• A rectangle

• A triangle

• A circle

How do you recognize a perfect square trinomial?

• It has three terms.

• The first term is always X squared.

• It has a constant term.

• The middle term is double the square root of the last term.

What is the first step in completing the square?

• Divide the equation by X.

• Add a constant to both sides.

• Multiply the equation by 2.

• Transform the equation into standard form.

Why do we add the square of half the coefficient of X to both sides?

• To make the equation longer.

• To balance the equation.

• To make it a perfect square trinomial.

• To simplify the equation.