Shannon M.
asked • 04/27/20Solving for c using the Quadratic Formula.
For what value of c does 2x^2 - 4x-c =6 have exactly one solution ?
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1 Expert Answer
Arturo O. answered • 04/27/20
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In standard form, the equation is
2x2 - 4x - (c + 6) = 0
To have only one solution, the discriminant must be zero.
D = (-4)2 - 4(2)[-(c + 6)] = 0
16 + 8(c + 6) = 0
c = -16/8 - 6 = -8
c = -8
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Arturo O.
The quantity c is not in the given equation, so we cannot answer this question. Edit the equation to show c in it.04/27/20