Calculator™ © - Free Online Calculators

Online Calculators since 2009

- Math: Approximations Tutorials and Revision Guides
- Equivalent Ratio Calculator
- Ratio Division Calculator
- Equivalent Ratios Calculator
- Ratio Calculator
- Numbering Systems, a Historical View
- Divisibility Rules Video Tutorial
- Multiples, Factors, Prime Numbers and Prime Factorization including LCM and GC
- Order of Operations and PEMDAS Rule Video Tutorial
- Operations with Numbers and Properties of Operations Video Tutorial
- Math: Arithmetic Tutorials and Revision Guides

Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
---|---|---|---|---|---|---|

10.2 | Quadratic Inequalities |

In this Math tutorial, you will learn:

- What are quadratic inequalities?
- How to identify whether a given number is a root of a quadratic inequality or not?
- How to write a quadratic inequality in the standard form?
- What happens to the sign of a quadratic inequality when the discriminant is positive? Zero? Negative?
- How to study the sign of a quadratic inequality?
- How to find the solution set(s) of a quadratic inequality?

In the previous tutorial, we explained how to solve linear inequalities in one or two variables. Now, we will explain how to solve quadratic inequalities, i.e. inequalities that contain one of the variables in the second power. Obviously, such inequalities are more complicated to solve compared to linear ones. Therefore, we are dedicating this entire tutorial only to quadratic inequalities.

Please select a specific **"Quadratic Inequalities"** lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this math topic.

Enjoy the "Quadratic Inequalities" math tutorial? People who liked the "Quadratic Inequalities" tutorial found the following resources useful:

- Math tutorial Feedback. Helps other - Leave a rating for this tutorial (see below)
- Inequalities Revision Notes: Quadratic Inequalities. Print the notes so you can revise the key points covered in the math tutorial for Quadratic Inequalities
- Inequalities Practice Questions: Quadratic Inequalities. Test and improve your knowledge of Quadratic Inequalities with example questins and answers
- Check your calculations for Inequalities questions with our excellent Inequalities calculators which contain full equations and calculations clearly displayed line by line. See the Inequalities Calculators by iCalculator™ below.
- Continuing learning inequalities - read our next math tutorial: Graphing Inequalities

We hope you found this Math math tutorial "Quadratic Inequalities" useful. If you did it would be great if you could spare the time to rate this math tutorial (simply click on the number of stars that match your assessment of this math learning aide) and/or share on social media, this helps us identify popular tutorials and calculators and expand our free learning resources to support our users around the world have free access to expand their knowledge of math and other disciplines.

You may also find the following Math calculators useful.

- Hindu Arabic To Roman Numbers Converter
- 2d Vector Angle Calculator
- Arc Length Calculator
- Isosceles Triangle Calculator
- Solve Linear Inequalities Calculator
- Angle Between Two Vectors Calculator
- Area Of A Decagon Calculator
- Ratio Calculator
- Conical Frustum Volume Surface Area And Height Calculator
- Advanced Z Score Calculator
- Angle Between Two Lines Calculator
- Base Edge Of A Right Rectangular Pyramid Calculator
- Difference Of Tangent And Cotangent To Product Calculator
- Graphic Calculator
- Moles Sodium To Gram Calculator
- 2d Vector Magnitude Calculator
- Recurrent Decimals To Fraction Converter
- Antilogarithm Calculator
- Fraction To Ratio Calculator
- Ratio Simplifier Calculator