Understanding Quadratic Expressions and Factoring

The video tutorial explores the quadratic expressions 4x^2 + 12x + 9 and 4x^2 - 9, aiming to find a common binomial factor. The first expression is factored as a perfect square trinomial, resulting in (2x + 3)^2. The second expression is factored as a difference of squares, yielding (2x + 3)(2x - 3). Both expressions share the common binomial factor 2x + 3.

What is the task given at the beginning of the video regarding the quadratic expressions?

• To graph the expressions

• To find the roots of the expressions

• To determine the degree of the expressions

• To identify a common binomial factor

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CCSS.HSA.APR.C.4

What is the first step in factoring the expression 4x^2 + 12x + 9?

• Using the quadratic formula

• Finding the greatest common factor

• Recognizing it as a perfect square trinomial

• Identifying it as a difference of squares

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CCSS.HSA.APR.C.4

Which pattern does the expression 4x^2 + 12x + 9 fit into?

• Perfect square trinomial

• Sum of cubes

• Difference of squares

• Linear binomial

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CCSS.HSA.APR.C.4

What is the factored form of 4x^2 + 12x + 9?

• (2x - 3)^2

• (4x + 9)(x + 1)

• (2x + 3)^2

• (2x + 3)(2x - 3)

Tags

CCSS.HSA.APR.C.4

Which expression is a perfect square trinomial?

• x^2 + 4x + 4

• 4x^2 + 12x + 9

• 2x^2 - 8x + 16

• 4x^2 - 9

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CCSS.HSA.APR.C.4

What is the significance of the middle term in a perfect square trinomial?

• It is the difference of the squares of the binomials

• It is twice the product of the binomial terms

• It is the sum of the squares of the binomials

• It is the square of the first term

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CCSS.HSA.APR.C.4

How is the expression 4x^2 - 9 factored?

• As a linear binomial

• As a sum of cubes

• As a difference of squares

• As a perfect square trinomial

Tags

CCSS.HSA.APR.C.4

What is the factored form of 4x^2 - 9?

• (2x - 3)^2

• (4x - 9)(x + 1)

• (2x + 3)^2

• (2x + 3)(2x - 3)

Tags

CCSS.HSA.APR.C.4

What is the result of factoring a difference of squares?

• Two conjugate binomials

• A trinomial

• Two identical binomials

• A single binomial

What common binomial factor is shared by both expressions?

• x + 1

• 2x + 3

• 4x + 9

• 2x - 3