Question 150927
{{{(x+1)/(x^2-x-2)}}} Start with the given expression.



{{{(x+1)/((x+1)(x-2))}}} Factor {{{x^2-x-2}}} to get {{{(x+1)(x-2)}}}.



{{{(highlight(x+1))/(highlight(x+1)(x-2))}}} Highlight the common terms. 



{{{(cross(x+1))/(cross(x+1)(x-2))}}} Cancel out the common terms. 



{{{(1)/(x-2)}}} Simplify. 



So {{{(x+1)/(x^2-x-2)}}} simplifies to {{{(1)/(x-2)}}}.



In other words, {{{(x+1)/(x^2-x-2)=(1)/(x-2)}}} where {{{x<>-1}}} or {{{x<>2}}}