# Thread: inequality problem =.=

1. ## inequality problem =.=

ok so my teacher gave me this problem:

x+1/x^2-x-2 > 0

actually the inequality sign is "greater than or equal to" i just dont know how to type it in

so how do i solve this you guys?

2. Originally Posted by behindDkeys
ok so my teacher gave me this problem:

x+1/x^2-x-2 > 0

actually the inequality sign is "greater than or equal to" i just dont know how to type it in

so how do i solve this you guys?
Hi

Do you mean $\frac{x+1}{x^2-x-2} \geq 0$ ?

If so note that $x^2-x-2 = (x-2)(x+1)$

3. Originally Posted by running-gag
Hi

Do you mean $\frac{x+1}{x^2-x-2} \geq 0$ ?

If so note that $x^2-x-2 = (x-2)(x+1)$

yes yes its that!!!!

oh so i can factor it out i forgot about factoring

hmmm then i can cancel out x+1 which leaves me with x-2 is greater than or equal to 0 right?

whats next to that?

coz i dont have y

4. Originally Posted by behindDkeys
hmmm then i can cancel out x+1 which leaves me with x-2 is greater than or equal to 0 right?
Yes but 2 is a forbidden value because makes the denominator equal to 0

5. Originally Posted by running-gag
Yes but 2 is a forbidden value because makes the denominator equal to 0

so then i put it to the other side making it x>2?

6. Originally Posted by behindDkeys
so then i put it to the other side making it x>2?
Yes