ANSWER:

2. Quadratic equations are actually used in everyday life, as when calculating areas, determining a product's profit or formulating the speed of an object. Quadratic equations refer to equations with at least one squared variable, with the most standard form being ax² + bx + c = 0

3. The best wat to solve problems in quadratic equation just follow the steps and also the given formula.

hope it helps. anyway, kung matalinong sagot ang hanap, it's up to you.