Solve the quadratic equation by factoring. 5x^2 - 8 = 39x
5x^2 - 8 = 39x 5x^2 - 39x - 8 = 0 (5x + 1)(x - 8) = 0 5x + 1 = 0 5x = -1 x = -1/5 x - 8 = 0 x = 8 Solution set: x = -1/5 or x = 8
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Asked 2/24/2013 4:02:42 PM
Updated 1/29/2016 5:54:56 PM
Edited by Andrew. [1/29/2016 5:53:34 PM]
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5x^2 - 8 = 39x
5x^2 - 39x - 8 = 0
(5x + 1)(x - 8) = 0
5x + 1 = 0
5x = -1
x = -1/5
x - 8 = 0
x = 8
Solution set: x = -1/5 or x = 8
Added 1/29/2016 5:54:56 PM
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