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Factor completely: 16x2 - 81
Question
Asked 3/10/2015 8:58:39 AM
Updated 3/11/2015 8:11:27 AM
1 Answer/Comment
Flagged by janezeshun [3/11/2015 8:11:01 AM]
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User: Factor completely: 16x2 - 81

Question
Asked 3/10/2015 8:58:39 AM
Updated 3/11/2015 8:11:27 AM
1 Answer/Comment
Flagged by janezeshun [3/11/2015 8:11:01 AM]
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3
16x^2 - 81
= (4x)^2 - 9^2
= (4x - 9)(4x + 9)
Added 3/11/2015 8:11:27 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/11/2015 8:21:37 AM]
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