Loading [MathJax]/jax/output/HTML-CSS/jax.js

Introduction of Quadratic Equation

We will discuss about the introduction of quadratic equation.

A polynomial of second degree is generally called a quadratic polynomial.

If f(x) is a quadratic polynomial, then f(x) = 0 is called a quadratic equation.

An equation in one unknown quantity in the form ax2 + bx + c = 0 is called quadratic equation.

A quadratic equation is an equation of the second degree.        

The general form of a quadratic equation is ax2 + bx + c = 0 where a, b, c are real numbers (constants) and a ≠ 0, while b and c may be zero.

Here, x is the variable, a is called the coefficient of x2, b the coefficient of x and c the constant (or absolute) term.

The values of x which satisfy the equation are called the roots of the quadratic equation.

Examples of quadratic equation:

(i) 5x2 + 3x + 2 = 0 is an quadratic equation.

Here, a = the coefficient of x2 = 5,

b = coefficient of x = 3 and

c = constant = 2


(ii) 2m2 - 5 = 0 is an quadratic equation.

Here, a = the coefficient of m2 = 2,

b = coefficient of m = 0 and

c = constant = -5


(iii) (x - 2)(x - 1) = 0 is an quadratic equation.

(x - 2)(x - 1) = 0

⇒ x2 - 3x + 2 = 0

Here, a = the coefficient of x2 = 1,

b = coefficient of x = -3 and

c = constant = 2


(iv) x2 = 1 is an quadratic equation.

x2 = 1

⇒ x2 - 1 = 0

Here, a = the coefficient of x2 = 1,

b = coefficient of x = 0 and

c = constant = -1


(v) p2 - 4p + 4 = 0 is an quadratic equation.

Here, a = the coefficient of p2 = 1,

b = coefficient of p = -4 and

c = constant = 4






11 and 12 Grade Math 

From Introduction of Quadratic Equation to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.




Share this page: What’s this?

Recent Articles

  1. Worksheet on Area, Perimeter and Volume | Square, Rectangle, Cube,Cubo

    Jul 25, 25 12:21 PM

    In this worksheet on area perimeter and volume you will get different types of questions on find the perimeter of a rectangle, find the perimeter of a square, find the area of a rectangle, find the ar…

    Read More

  2. Worksheet on Volume of a Cube and Cuboid |The Volume of a RectangleBox

    Jul 25, 25 03:15 AM

    Volume of a Cube and Cuboid
    We will practice the questions given in the worksheet on volume of a cube and cuboid. We know the volume of an object is the amount of space occupied by the object.1. Fill in the blanks:

    Read More

  3. Volume of a Cuboid | Volume of Cuboid Formula | How to Find the Volume

    Jul 24, 25 03:46 PM

    Volume of Cuboid
    Cuboid is a solid box whose every surface is a rectangle of same area or different areas. A cuboid will have a length, breadth and height. Hence we can conclude that volume is 3 dimensional. To measur…

    Read More

  4. Volume of a Cube | How to Calculate the Volume of a Cube? | Examples

    Jul 23, 25 11:37 AM

    Volume of a Cube
    A cube is a solid box whose every surface is a square of same area. Take an empty box with open top in the shape of a cube whose each edge is 2 cm. Now fit cubes of edges 1 cm in it. From the figure i…

    Read More

  5. 5th Grade Volume | Units of Volume | Measurement of Volume|Cubic Units

    Jul 20, 25 10:22 AM

    Cubes in Cuboid
    Volume is the amount of space enclosed by an object or shape, how much 3-dimensional space (length, height, and width) it occupies. A flat shape like triangle, square and rectangle occupies surface on…

    Read More