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Solving quadratic equations by factoring 2

Authored by Lori Suedkamp

Mathematics

11th - 12th Grade

CCSS covered

Used 2+ times

Solving quadratic equations by factoring 2
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23 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve
x2 + 9x + 20 = 0

x = -2, x = -10
x = -3, x = -4
x = -4, x = -5
x = -4, x = -6

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve

x2 + 2x - 20 = 4

x = -6, x = 4

x = 6, x = -4

x = 12, x = -2

x = 8, x = -3

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Which answer correctly factored for the equation below?

(x + 7)(x - 2) = 0
(x - 7)(x + 2) = 0
(x - 7)(x - 2) = 0
(x + 7)(x + 2) = 0

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Which answer correctly factored for the equation below?

(x - 7)(x + 4) = 0
(x + 7)(x - 4) = 0
(x - 7)(x - 4) = 0
(x + 7)(x + 4) = 0

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

What are the x- intercepts?

x= 0 and x= -4
x= 0 and x= 4
y= 0
x= 2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Solve

(n +7)(n + 9) = 0

n = -7; n = 4

n = 7; n = -9

n = -3; n = 10

n = -7; n = -9

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What should you do first in solving this equation?
x2 + 6x - 13 = 3

Get factored form
Find two numbers which add to make 6 and multiply to make -13
Make it equal 0 by subtracting 3 on each side
Type it all in a calculator.

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