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