-1-and-state-the-domain-restrictions-that-must-be-preserved-after-simplification

Question

Simplify the expression x2−1x−1\displaystyle \frac{$$x^2 - 1$$}{x - 1} and identify the domain restriction that must be preserved.

Accepted Answer

x+1x + 1, where x≠1x 
eq 1

Answer

x+1x + 1, for all real numbers xx

Answer

x−1x - 1, where x≠1x 
eq 1

Answer

1−x1 - x, where x≠−1x 
eq -1

Simplify the expression x2−1x−1\(\displaystyle\) \(\frac{x^2 - 1}{x - 1}\) and identify the domain restriction that must be preserved.