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You just explained why the quadratic formula is the way it is better than any of the discussions of completing the square that all my middle school textbooks ga
by BeFlatXIII 5y ago
You just explained why the quadratic formula is the way it is better than any of the discussions of completing the square that all my middle school textbooks gave.
- concreteblock 5y agoMaybe for you. Different explanations work for different people.
- jacobolus 5y agoThe quadratic formula is simpler to remember and to derive if you first put your equation into the form: x² – 2ax = b Then (x – a)² = a² + b So x = a ± √(a² + b)