(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hi,

there are several methods to solve an quadratic inequality.

1:by graph

2:if (x-a)(x-b) > 0,(x-a) > 0 and (x-b) > 0 or (x-a) < 0 and (x-b) < 0.......

3.Using test value method

i.e.Find a and b in the expanded form of (x-a)(x-b)

a and b are the critical values,then we take a value of x from different interval and check whether it satisfies the

inequality or not.

2. Relevant equations

3. The attempt at a solution

We need to factorize before using method 2 and 3.

Is there any method to solve an quadratic inequality without factorizing?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Quadratic inequalities

**Physics Forums | Science Articles, Homework Help, Discussion**