This algebra math tutorial explains how to solve quadratic inequalities using a number line. We will write solutions using number line notation, inequality notation, and interval notation. We will cover three examples when the corresponding quadratic equation has two real solutions, one real solution and no real solutions.
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Solving Quadratic Equations by Factoring
https://youtu.be/BH-Rmrd5fB0
Solving Quadratic Equations by Completing the Square
https://youtu.be/8qAq793oDsU
Solving Quadratic Equations using the Square Root Property
https://youtu.be/TJJYvfoRg3Q
Solving Quadratic Equations using the Quadratic Formula
https://youtu.be/kW1uzR7fOdA
How to Determine the Discriminant and the Number of Solutions
https://youtu.be/vGDV1mBoHmo
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