Factoring Quadratic Expressions and Equations

Factoring Quadratic Expressions and Equations

Assessment

Interactive Video

Created by

Sophia Harris

Mathematics

8th - 10th Grade

Hard

The video tutorial explains a unique approach to factorization using substitution. It begins by introducing a trick to simplify the factorization process by making expressions look alike. The method involves substituting a part of the expression with a letter, P, to make solving easier. The tutorial then guides through solving the equation using this substitution method, factoring, and finding solutions for x. The process is demonstrated step-by-step, emphasizing the importance of substitution in simplifying complex quadratic equations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial problem that needs to be solved in the video?

Simplifying a polynomial

Finding the roots of a linear equation

Factoring a quadratic expression

Solving a system of equations

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the trick mentioned to make the problem easier?

Graphing the equation

Using the quadratic formula

Completing the square

Replacing parentheses with another letter

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What common factor is identified in the expressions?

3

4

5

2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What letter is used to replace the expression 2x - 3?

S

Q

P

R

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What form does the equation take after substitution?

P^2 - 2P = 0

P^2 + 2P = 0

P^2 + 3P = 0

P^2 - 3P = 0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can be factored out from the equation P^2 - 2P = 0?

P

0

2

P^2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the possible values of P after factoring?

2 and 3

1 and 2

0 and 2

0 and 1

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does P represent in the original equation?

2x - 3

4x - 6

x + 3

x - 2

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of x when P equals 0?

1

2

3/2

0

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of x when P equals 2?

1

2

3/2

5/2

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