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Solve each equation. (x + 3)(x - 3) = 16 - 2x2
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Asked 3/17/2014 6:19:55 AM
Updated 3/17/2014 7:28:53 AM
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Flagged by yeswey [3/17/2014 7:26:30 AM]
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User: Solve each equation. (x + 3)(x - 3) = 16 - 2x2

Weegy: x - 5 = 10

x = 10 + 5

x = 15


Question
Asked 3/17/2014 6:19:55 AM
Updated 3/17/2014 7:28:53 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [3/17/2014 7:26:30 AM]
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(x + 3)(x - 3) = 16 - 2x^2
x^2 - 9 = 16 - 2x^2
3x^2 = 25
x^2 = 25/3
x = +/- sqrt(25/3)
= +/- 5/sqrt3
= +/-(5sqrt3)/3


Added 3/17/2014 7:28:53 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [3/17/2014 7:32:18 AM]
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