Notice: Payments for answers will end 4/10/2017. Click for more info.
You have new items in your feed. Click to view.
Question and answer
Q: Factor completely: 9X4 – 81X2
A: 9x^4 – 81x^2 = 9x^2(x^2 - 9) = 9x^2(x + 3)(x - 3)
Get an answer
Original conversation
User: Factor completely: 9X4 – 81X2

Weegy: 9X4 ? 81X2 = -126
MoStWaNteD|Points 2661|

Question
Asked 3/14/2012 9:15:46 PM
Updated 1/4/2015 12:52:01 AM
2 Answers/Comments
This conversation has been flagged as incorrect.
New answers
Rating
3
Their common factor is 9x^2

Factoring it out, we will get this:
9x^2[(x^2)-9]
Added 3/14/2012 9:41:48 PM
This answer has been flagged as incorrect.
Flagged by yeswey [1/4/2015 12:51:32 AM]
3
9x^4 – 81x^2
= 9x^2(x^2 - 9)
= 9x^2(x + 3)(x - 3)
Added 1/4/2015 12:52:01 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [1/4/2015 2:26:23 PM]
Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
27,017,687 questions answered
*
Get answers from Weegy and a team of really smart lives experts.
Popular Conversations
What's 3 * 4
Weegy: Synonyms for the word "say" which are bigger in length and in impact, are communicate, ...
6/16/2018 8:51:59 PM| 2 Answers
Solve for x 3x + 3 - x + (-7) > 6 A. x > 2.5 B. x > ...
Weegy: (3x + 1) + 8 = 4(x + 9), 3x + 9 = 4x + 36, 3x - 4x = 36 - 9, -x = 27, x = -27 User: Solve this ...
6/21/2018 5:41:04 PM| 2 Answers
When adding a suffix that begins with a consonant, the general rule ...
Weegy: If the ending begins with a consonant, the spelling of the root word is usually not altered.
6/21/2018 8:43:17 PM| 2 Answers
S
L
Points 265 [Total 283] Ratings 0 Comments 195 Invitations 7 Offline
S
L
R
Points 145 [Total 296] Ratings 1 Comments 5 Invitations 13 Offline
S
L
Points 135 [Total 135] Ratings 0 Comments 135 Invitations 0 Offline
S
R
L
R
P
R
P
R
Points 66 [Total 734] Ratings 0 Comments 6 Invitations 6 Offline
S
1
L
L
P
R
P
L
P
P
R
P
R
P
R
P
P
Points 62 [Total 13329] Ratings 0 Comments 62 Invitations 0 Offline
S
L
1
R
Points 34 [Total 1450] Ratings 2 Comments 14 Invitations 0 Offline
S
L
Points 10 [Total 187] Ratings 0 Comments 0 Invitations 1 Offline
S
Points 10 [Total 13] Ratings 0 Comments 10 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 0 Comments 0 Invitations 1 Offline
S
Points 2 [Total 2] Ratings 0 Comments 2 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.