Question

Which of the following is an example of a quadratic equation?

Answer 1

Answer: X² = 125

Step-by-step explanation: The equation X² = 125 is called a quadratic equation because we have a squared term as our highest power.

Answer 2

Answer: OPTION C.

Explanation:

The standard form of a Quadratic equation is:

`ax^2 + bx + c = 0`

Where "a", "b", and "c" are numerical coefficients (
`a\\eq 0`)

The term
`ax^2` is the Quadratic term,.

The term
`bx` is the Linear term.

The term
`c` is the Constant term.

A Quadratic equation whose Linear term is not present, is called a "Pure quadratic equation", and can have the following form:

`ax^2+c=0`

Based on this, we can determine that the equation shown in Option C is a Pure quadratic equation, because it has a Quadratic term and a Constant term:

`x^2=125`

It can be written as:

`x^2-125=0`