9.2 Solving Quadratic Equations by Factoring

9.2 Solving Quadratic Equations by Factoring

9th Grade

10 Qs

quiz-placeholder

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9.2 Solving Quadratic Equations by Factoring

9.2 Solving Quadratic Equations by Factoring

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Jennifer Cariasini

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

One solution of a quadratic equation is 8. What do you know about the quadratic​ equation? What are two ways you would know if a quadratic equation could have this​ solution?

The expression x−8

must be a factor. To know​ this, divide both sides by 8 and solve for x to check if the solution is​ 0, or factor the equation to see if

x−8 is a factor.

The expression x−8

must be a factor. To know​ this, substitute 8 into the quadratic equation and see if it​ checks, or factor the equation to see if

x−8 is a factor.

The expression x+8

must be a factor. To know​ this, substitute 8 into the quadratic equation and see if it​ checks, or factor the equation to see if

x+8 is a factor.

The expression

x+8 must be a factor. To know​ this, divide both sides by 8 and solve for x to check if the solution is​ 0, or factor the equation to see if

x+8 is a factor.

2.

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Media Image

Describe the error. Choose the correct answer below.

The student did not take the square root of both sides first.

The student did not solve the two equations for x correctly.

The student did not factor correctly.

The student did not get 0 on one side of the equation.

3.

FILL IN THE BLANK QUESTION

30 mins • 1 pt

What is the solution set to (x+5)(x-7)?

Enter answer in {n,n} format.

4.

FILL IN THE BLANK QUESTION

30 mins • 1 pt

5.

FILL IN THE BLANK QUESTION

30 mins • 1 pt

Use the​ zero-product property to solve the following equation. Write your solutions as a set in roster form. {n,n}

6.

FILL IN THE BLANK QUESTION

30 mins • 1 pt

7.

FILL IN THE BLANK QUESTION

30 mins • 1 pt

Media Image

The total area of the figure to the right is

342cm^2.

Use this fact to write a quadratic equation involving x.

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