How to solve by extracting roots. Isolate the square and then take the square root of both sides. You can use this technique to solve certain quadratic equations.
Solving quadratic equations on YouTube: [ Ссылка ]
Cool free math notes on extracting square roots: [ Ссылка ]
Free solving notes (scroll to bottom for more video links): [ Ссылка ]
[ Ссылка ]
Solving Quadratic Equations and Graphing Parabolas
1 Extracting Square Roots
2 Completing the Square
3 Quadratic Formula
4 Guidelines for Solving Quadratic Equations and Applications
5 Solving Equations Quadratic in Form
6 Graphing Parabolas
7 Complex Numbers and Complex Solutions
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