Factor k^2 - 81. (k + 9)(k + 9) (k - 9)(k - 9) (k - 9)(k + 9)
Question
Updated 11/27/2014 6:26:21 AM
Flagged by yeswey [11/27/2014 6:14:08 AM], Edited by andrewpallarca [11/27/2014 6:26:19 AM], Unflagged by andrewpallarca [11/27/2014 6:26:20 AM], Confirmed by andrewpallarca [11/27/2014 6:26:21 AM]
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Original conversation
User: Factor k^2 - 81. (k + 9)(k + 9) (k - 9)(k - 9) (k - 9)(k + 9)

Weegy: k^2 - 81 = (k - 9)(k + 9)

User: What is the solution set of {x | x > -5} {x | x < 5}? all numbers except -5 and 5 the numbers between -5 and 5 the empty set all real numbers

User: Which of the following describes the graph of {x | 2 < x < 2}? just a closed circle on 2 an open circle on 2 and arrows pointing out the entire number line no solution

Question
Updated 11/27/2014 6:26:21 AM
Flagged by yeswey [11/27/2014 6:14:08 AM], Edited by andrewpallarca [11/27/2014 6:26:19 AM], Unflagged by andrewpallarca [11/27/2014 6:26:20 AM], Confirmed by andrewpallarca [11/27/2014 6:26:21 AM]
Rating
8
The solution set of {x | x > -5} {x | x < 5} is the numbers between -5 and 5
Confirmed by andrewpallarca [11/27/2014 6:26:27 AM]
8
no solution describes the graph of {x | 2 < x < 2}
Confirmed by andrewpallarca [11/27/2014 6:32:53 AM]

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