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Solve each equation. 5x2 - 55 = 90
Question
Asked 7/17/2012 8:06:31 AM
Updated 8/1/2014 10:34:36 AM
2 Answers/Comments
Flagged by andrewpallarca [8/1/2014 10:34:36 AM]
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User: Solve each equation. 5x2 - 55 = 90

Question
Asked 7/17/2012 8:06:31 AM
Updated 8/1/2014 10:34:36 AM
2 Answers/Comments
Flagged by andrewpallarca [8/1/2014 10:34:36 AM]
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3
5x^2 - 55 = 90;
5x^2 - 55 - 90 = 0;
5x^2 - 145 = 0;
5(x^2 - 29) = 0
x = - (sqrt 29) or x = sqrt 29
Added 8/1/2014 10:34:27 AM
This answer has been confirmed as correct and helpful.
0
5x^2 - 55 = 90
5x^2 = 145
x^2 = 29
x = 5.38
Added 7/17/2012 9:47:52 AM
This answer has been flagged as incorrect.
Flagged by andrewpallarca [8/1/2014 10:34:26 AM]
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