AnswersFL-1200330-Algebra 2 Sem 1 - FlexSolving Quadratic Equations by Factoring

Solving Quadratic Equations by Factoring Answers

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1
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Which of the following describes the relationship between b and c?

A
c is 1.5 times that of b.
B
c is double b.
C
c is the square of half of b.
D
c is the square of b.
2
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x2 – 10x +

Answer:

25

3

x2 + x + 36

Answer:

12

4

x2 + x +

Question illustration
Answer:

1/16

5

Given 2x² = -8, x is .

A
-2
B
2
C
2i or -2i
D
4i or -4i
6

Solve (x – 3)2 = 49. Select the values of x.

A
–46
B
-4
C
10
D
52
7

Factor the perfect-square trinomial on the left side of the equation.(x + )² =

Question illustration
Answer:

1/4

8

x + =

A
1/4
B
1/2
C
2/3
9

Apply the square root property of equality.

Question illustration
Answer:

2/3

10

Which values are solutions of the equation? Check all of the boxes that apply.

A
Option
B
Option
C
Option
D
Option
11

x2 +

Answer:

-8

12

x =

Answer:

9

13

Add to each side x2 – 8x = 9 to complete the square.

Answer:

16

14

Now that you have x² - 8x + 16 = 9 + 16, apply the square root property to the equation.

A
(x – 4)² = 25
B
(x + 16)² = 25
C
(x – 4)² = 9
D
(x + 16)² = 9
15

Choose the solutions to the quadratic equationx2 – 8x – 9 = 0.

A
–21
B
–1
C
9
D
29
16

Choose an equation that would be used to solve 0 = -x2 + 10x – 8

A
(x + 25)2 = –8
B
(x – 5)2 = 17
C
(x – 10)2 = 25
17

The trestle meets the ground at units and units.

Answer:

0.9

18

The trestle meets the ground at units and units.

Answer:

9.1

19

Question text not available

Answer:

1/2

20

Question text not available

Answer:

-2

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