Title: Math 7 Factor out a Common Factor
Course: quiz duplicate error

Q: Factor this expression:

3x + 12
A: 3(x + 4) / 3(x+4) / 3(1x + 4) / 3(1x+4)
Feedback ("3(x + 12)"): You need to factor the 3 out of the 12 as well.

Q: Factor this expression:  6x + 8
- 6(x + 8)
- 2(3x + 4)
- 3(2x + 4) (3*4 is 12. You need 8.)
- 4(2x + 2)
A: 2(3x + 4)

Q: Factor the expression: 4n - 2
- 4(n - 2)
- 2(2n) (What happened to the second term?)
- 2(2n - 1)
- 2(2n + 1) (There was a subtract sign.)
A: 2(2n - 1)

Q: Factor the expression: 4b + 28
- 4(b + 7)
- 4(b + 28) (You need to factor the 4 out of 28 as well.)
- 7(4b + 4) (That would equal 28b + 28)
- 4(4b + 7)
A: 4(b + 7)

Q: Factor the expression: 30x + 6
- 6(30x + 1)
- 6(5x + 1)
- 6(5x) (What happened to the second term?)
- 30(x + 6) (Incorrect. This would equal 30x + 180.)
A: 6(5x + 1)

Q: Factor the expression:  6m + 9
A: 3(2m + 3) / 3(2m+3)

Q: Factor the expression: 5m - 15
A: 5(m - 3) / 5(m-3) / 5(1m - 3) / 5(1m-3)
Feedback ("5(m - 15)"): You need to factor the 5 out of 15 as well.

Q: Factor the expression: 20x - 50
- 20(x - 50)
- 10(2x - 50) (You need to factor the 10 out of the 50 as well.)
- 10(2x - 5)
- 5(20x - 10)
A: 10(2x - 5)

Q: Factor the expression: -9x - 6
- -9(x + 6)
- -3(3x + 2)
- -3(3x - 2) (If you factor -3 out of -6, you will get + 2)
- 9(-x - 6)
A: -3(3x + 2)

Q: Factor out a -7:

-7x + 14
- -7(x - 2)
- -7(x + 2) (If you factor -7 out of 14, you will get -2.)
- -7(x - 14)
- -14(7x + 1)
A: -7(x - 2)

Q: Factor the expression:

[Image: Factor Fractions]
- $$ \frac{1}{5} $$(3x - 1)
- $$ \frac{1}{5} $$(3x + 1) (There was a subtract sign.)
- $$ \frac{3}{5} $$(x - 1) (You can't factor 3/5 out of the 1/5.)
- 3x - 1
A: $$ \frac{1}{5} $$(3x - 1)

Follow these directions to respond to this question:

1. Right click on the image at the bottom of these directions.

2. Choose Save As and save the image to your desktop.

3. Open Paint on your computer, then open the image you saved to your computer in Paint.

4. Answer the question using the text and drawing tools.

5. Save the picture.

6. Return to this question. Click on the Insert Image button:

[Image: Insert Image button]

8.  Click Find or Upload an Image.

9.  Click Upload a File on the left hand side.

10. Click Choose a File and select the file you just made.

11. Click Insert

CLICK HERE to watch a video on how to do Paint questions like this one

[Image: Factor Drawing 1]

Follow these directions to respond to this question:

1. Right click on the image at the bottom of these directions.

2. Choose Save As and save the image to your desktop.

3. Open Paint on your computer, then open the image you saved to your computer in Paint.

4. Answer the question using the text and drawing tools.

5. Save the picture.

6. Return to this question. Click on the Insert Image button:

[Image: Insert Image button]

8.  Click Find or Upload an Image.

9.  Click Upload a File on the left hand side.

10. Click Choose a File and select the file you just made.

11. Click Insert

CLICK HERE to watch a video on how to do Paint questions like this one

[Image: Factor Drawing 2]

Q: Factor the expression: 25y - 5
A: 5(5y - 1) / 5(5y-1) / 5(5y -1) / 5(5y- 1)
Feedback ("5(5y + 1)"): There was a subtraction sign.

Q: Factor the expression: 6x - 15
A: 3(2x - 5) / 3(2x-5)