Mr. Knotts found the difference of the following expression. Which statement is true about Mr. Knotts’s work? StartFraction x Over x squared minus 1 EndFraction minus StartFraction 1 Over x minus 1 EndFraction Step 1: StartFraction x Over (x + 1) (x minus 1) EndFraction minus StartFraction 1 Over x minus 1 EndFraction Step 2: StartFraction x Over (x + 1) (x minus 1) EndFraction minus StartFraction 1 (x + 1) Over (x + 1) (x minus 1) EndFraction Step 3: StartFraction x minus x + 1 Over (x + 1) (x minus 1) EndFraction Step 4: StartFraction 1 Over (x + 1) (x minus 1) EndFraction