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Factor completely: 9X4 – 81X2
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Asked 3/14/2012 9:15:46 PM
Updated 1/4/2015 12:52:01 AM
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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.
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8
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]
8
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]
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