What is the factored form of the following expression?
x2 – x – 42
A. (x – 7)(x + 6)
B. (x + 7)(x + 6)
C. (x + 7)(x – 6)
D. (x – 7)(x – 6)

Question

Asked 1/21/2013 3:13:50 AM

Updated 5/29/2014 9:16:54 PM

5 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [5/29/2014 9:11:08 PM]

s

The answer is:

A. (x ? 7)(x + 6)

(x ? 7)(x + 6)

=x^2+6x-7x-42

=x^-x-42

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Question

Asked 1/21/2013 3:13:50 AM

Updated 5/29/2014 9:16:54 PM

5 Answers/Comments

This conversation has been flagged as incorrect.

Flagged by yeswey [5/29/2014 9:11:08 PM]

Rating

8

x^2 – x – 42 = (x – 7)(x + 6)

Added 5/29/2014 9:11:03 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/29/2014 9:18:11 PM]

8

3x^2 + 8x – 16 = (3x – 4)(x + 4)

Added 5/29/2014 9:14:25 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/29/2014 9:18:20 PM]

8

x^2 – 10xy + 24y^2 = (x – 6y)(x – 4y)

Added 5/29/2014 9:14:57 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/29/2014 9:18:27 PM]

8

k^2 – 9h^2 = (k + 3h)(k – 3h)

Added 5/29/2014 9:16:03 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/29/2014 9:18:41 PM]

8

4x^2 – 81y^2 = (2x + 9y)(2x – 9y)

Added 5/29/2014 9:16:54 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/29/2014 9:18:57 PM]

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