x³ - x factorises as x(x - 1)(x + 1). Which number below does NOT make it zero?

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x³ - x factorises as x(x - 1)(x + 1). Which number below does NOT make it zero? | StemPy Lab

MathematicsMediumHigh School (9–10)GeneralAlgebra › Polynomials

$x^3 - x$ factorises as $x(x - 1)(x + 1)$ . Which number below does NOT make it zero?

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