Any equation of the form or which can be converted into form where a, b, c are real numbers and is a **Quadratic Equation**. Such a form of quadratic equation is called standard form. For example, we have equation . It is a **quadratic equation**.

If , it would not remain quadratic equation and will become linear equation instead. Therefore, value of **a** should not be equal to 0.

- In Quadratic Equation

Can you determine values of a, b and c by comparing it with standard form ?

When we compare it with the standard form, we get a=3, b=5 and c =6.

- If you are given any equation, Can you determine if it is a
**quadratic equation**?

Equation is quadratic only if it is present in the standard form or if it can be converted into form .

Is quadratic equation?

Yes, because it can be written as which is same as the standard form . Value of a=1, b=5 and c=-8.

Is quadratic equation?

Yes, because it can be converted into standard form.

which is the standard form.

Is quadratic equation?

No, because it cannot be converted into standard form .