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The equation $P(x) = \alpha$ where $P(x) = x^4 + 4x^3 – 2x^2 – 12x$ has four distinct real roots if and only if 

  1. $P(-3) < \alpha$
  2. $P(-1) > \alpha$
  3. $P(-1) < \alpha$
  4. $P(-3) < \alpha < P(-1)$
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