# Quadratic Inequalities

> This section solves quadratic inequalities ax^2+bx+c ? 0, where ? is \>, \<, ≥ or ≤ and a≠ 0. Write standard form (right-hand side 0), solve the equality for the critical values, then test signs on a…

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## Full notes

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## More in Algebraic expressions, equations and inequalities

- [Quadratic Equations](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities/quadratic-equations) — Previous section
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- [All Algebraic expressions, equations and inequalities sections](https://www.hlayiso.com/grade-12/mathematics/notes/algebraic-expressions-equations-and-inequalities)

## Frequently asked questions

### What will I learn in "Quadratic Inequalities"?

This section covers Quadratic Inequalities as part of Algebraic expressions, equations and inequalities in Grade 12 Mathematics. You'll find clear explanations, worked examples, and key definitions aligned to the CAPS curriculum.

### Is this section aligned with the CAPS curriculum?

Yes. All notes on Hlayiso, including "Quadratic Inequalities", are written against the official CAPS curriculum and ATP for Grade 12 Mathematics.

### What should I study after "Quadratic Inequalities"?

Continue with the next section in Algebraic expressions, equations and inequalities, or test your understanding with the interactive quiz linked to this section.

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