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Solve each equation. 4 = x2 -7
4 = x^2 - 7 4 + 7 = x^2 x^2 = 11 x = ±sqrt of 11
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Asked 1/28/2015 6:42:04 AM
Updated 1/30/2015 11:07:41 PM
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4 = x^2 - 7
4 + 7 = x^2
x^2 = 11
x = ±sqrt of 11
Added 1/30/2015 11:07:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [1/30/2015 11:22:55 PM]
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Questions asked by the same visitor
Solve each equation. x2 = 144
Weegy: x2 x 3, your equation seems to be incomplete. Please clarify the equation. Thanks. (More)
Question
Updated 1/28/2015 6:51:02 AM
1 Answer/Comment
x^2 = 144

x^2 - 144 = 0;

(x - 12)(x + 12) = 0;

x - 12 = 0; x = 12;
x + 12 = 0; x = -12;

x = {12, -12}
Added 1/28/2015 6:51:02 AM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [1/28/2015 2:51:52 PM]
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