Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 150927: X+1
_____
X2 - 1X-2
simplify: X+1
_____
X2 - 1X-2
simplify
Answer by jim_thompson5910(8292) About Me  (Show Source):
You can put this solution on YOUR website!
(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