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If $$\frac{1}{2}$$ is one solution of the equation $$8x^{2}+2x-k=0$$, where k is a constant, what is the other solution of the equation?
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A.$$-\frac{3}{4}$$
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B.$$-\frac{1}{2}$$
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C.$$-\frac{1}{4}$$
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D.$$\frac{1}{4}$$
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E.$$\frac{3}{4}$$
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