The number of solution(s) for $sgn (x + 1) = 2 x^{2} - x$ is

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Solution

The correct option is C $2$
Given : $sgn (x + 1) = 2 x^{2} - x$
$sgn (x + 1) = ⎧ ⎨ ⎩ \begin{matrix} 0; x = - 1 1; x > - 1 - 1; x < - 1 \end{matrix}$

Hence, the number of solutions is $2.$

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