Solving Quadratic Equations Concepts

This video tutorial explains how to solve quadratic equations by completing the square. It begins with an introduction to the method, followed by moving the constant term to the right side of the equation. The tutorial then covers how to create a perfect square trinomial by determining the appropriate constant to add. After factoring the trinomial, the video demonstrates solving the equation and simplifying to find complex solutions. The tutorial concludes with a summary of the solutions obtained.

What is the first step in solving a quadratic equation by completing the square?

• Move the constant term to the right side

• Take the square root of both sides

• Factor the equation

• Add a constant to both sides

Tags

CCSS.HSA-REI.B.4B

When forming a perfect square trinomial, what is the formula to determine the constant to add?

• B divided by 2

• B squared

• B times 2

• B divided by 2 squared

Tags

CCSS.HSA-REI.B.4B

What is the value of the constant added to make the trinomial a perfect square in this example?

• 9

• 6

• 3

• 12

Tags

CCSS.HSA.APR.C.4

After factoring the trinomial, what is the expression obtained?

• (X - 3)(X - 3)

• (X + 3)(X - 3)

• (X + 2)(X + 2)

• (X + 3)(X + 3)

Tags

CCSS.7.EE.B.4A

What operation is performed to both sides of the equation to solve for x?

• Add 3

• Subtract 3

• Take the square root

• Multiply by 2

What is the simplified form of the square root of -8?

• 2i

• 2i square root of 2

• i square root of 8

• 4i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

What are the two solutions for x in this problem?

• X = 3 ± 2i square root of 3

• X = 3 ± 2i square root of 2

• X = -3 ± 2i square root of 2

• X = -3 ± 2i square root of 3

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

How are the solutions described in this example?

• Rational solutions

• Complex solutions

• Imaginary solutions

• Real solutions

Tags

CCSS.HSA-REI.B.4B

What is the purpose of completing the square in solving quadratic equations?

• To find the vertex of the parabola

• To convert the equation into a perfect square trinomial

• To eliminate the x term

• To simplify the equation

Tags

CCSS.7.EE.B.4A

What is the final step to isolate x in the equation?

• Multiply both sides by 2

• Add 3 to both sides

• Subtract 3 from both sides

• Divide both sides by 2

Tags

CCSS.7.EE.B.4A