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Find the discriminant, and determine the number of real solutions. Then solve x^2+2x+17=0
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Asked 11/20/2014 6:44:00 PM
Updated 11/25/2014 11:25:38 PM
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This conversation has been flagged as incorrect.
Flagged by yeswey [11/25/2014 11:21:18 PM]
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User: Find the discriminant, and determine the number of real solutions. Then solve x^2+2x+17=0

Weegy: (2x ? 3)(2x + 3)

= 4x^2 + 6x - 6x - 9;

= 4x^2 - 9


Question
Asked 11/20/2014 6:44:00 PM
Updated 11/25/2014 11:25:38 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [11/25/2014 11:21:18 PM]
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x^2 + 2x + 17 = 0
a = 1, b = 2, c = 17
discriminant = b^2 - 4ac = 2^2 - 4(1)(17) = 4 - 68 = -64 < 0
there are No Real Solutions, there are Two Imaginary Solutions.
x = (-2 ± sqrt (-64)]/2
= (-2 ± 8i)/2
= -1 ± 4i
Added 11/25/2014 11:25:38 PM
This answer has been confirmed as correct and helpful.
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