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Introduction to logarithm - class-XI

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Multiple Answers

If $\log\ (-2x)=2\log (x+1)$, then $x$ can be  equal to

  1. $-2+\sqrt {3}$
  2. $-4+2\sqrt {3}$
  3. $-2-\sqrt {3}$
  4. $-4-2\sqrt {3}$
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