1. ## Inequality help needed!

I've tried and tried but I can't solve these two inequalities

X^2 + X - 2 < 0

and:

5X - 2 > 0

2. Hi BobbyJean

Are there 2 separate questions or just one question consists of 2 inequalities?

Anyway, can you fatorise X^2 + X - 2, then find the critical values, then find the range where X^2 + X - 2 < 0

3. Originally Posted by BobbyJean
I've tried and tried but I can't solve these two inequalities

X^2 + X - 2 < 0

and:

5X - 2 > 0
1. factor

2. solve like an equation

Do you know how to factor?

EG $\displaystyle x^2+3x+2>0$

$\displaystyle (x+2)(x+1)>0$

This means that the only way the statement is true is if x is anything but in
$\displaystyle [-2,-1]$.

4. Originally Posted by songoku
Hi BobbyJean

Are there 2 separate questions or just one question consists of 2 inequalities?

Anyway, can you fatorise X^2 + X - 2, then find the critical values, then find the range where X^2 + X - 2 < 0

These are two separate questions and I can't solve them

5. Hi BobbyJean

Well, you've been given hints. First step, can you factorise X^2 + X - 2 ?

6. Originally Posted by songoku
Hi BobbyJean

Well, you've been given hints. First step, can you factorise X^2 + X - 2 ?

No I can't

7. Hi BobbyJean

Maybe this will help :College Algebra Tutorial on Factoring Polynomials