Quadratic Equations - 2

Kamis, 09 April 2026

Sometimes using the fact that x² = k implies x = ±√k can be used to solve quadratic equations. For instance, if x² = 9, then x = 3 or –3 because 3² = 9 and (–3)² = 9. This method works if the equation can be put in the form ax² – c = 0, where a and c are not negative.

 

Examples

 

Practice

 

 

Solutions

 

“Sumber Informasi”

Labels: Mathematician

Thanks for reading Quadratic Equations - 2. Please share...!