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fill in the ? mark with a value to make it a perfect square.
Question
Asked 5/8/2012 8:24:07 AM
Updated 11/24/2014 1:41:17 AM
1 Answer/Comment
Flagged by yeswey [11/24/2014 1:41:17 AM]
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User: fill in the ? mark with a value to make it a perfect square.

User: 9x^2+?x+49

Question
Asked 5/8/2012 8:24:07 AM
Updated 11/24/2014 1:41:17 AM
1 Answer/Comment
Flagged by yeswey [11/24/2014 1:41:17 AM]
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9x^2+42x+49 is a perfect square.
9x^2+42x+49=(3x+7)^2
Added 11/24/2014 1:41:15 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/24/2014 7:20:09 AM]
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