Question

A. Which of these equations describe a quadratic equation?

1. =

2

2. + 4

2 = 0

3. ( − 2)

2 − 5 = 0

4. ( + 3) + 8 = 0

5.

2 = 0​

Answer 1

Answer:

The standard form of a quadratic is y = ax^2 + bx + c, where a, b, and c are numbers and a cannot be 0. Examples of quadratic equations include all of these: y = x^2 + 3x + 1.