\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
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For the equation \(2x^2 + x = 0\), the set of solutions is
\(S=\left\{-\dfrac{1}{2},0\right\}\)
\(S=\{-2,0\}\)
\(S=\{2,0\}\)
\(S=\{0,1\}\)
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