Quotient when $x^{2} - 1$ is divided by $(x - 1)$ is

Quotient when $x^{2} - 1$ is divided by $(x - 1)$ is
  1. $x + 1$
  2. $x - 1$
  3. $x$
  4. $1$

Solution

$x^{2} - 1 = (x-1)(x+1)$.

Asked in: MH-SSC-9

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