Nature of roots of a quadratic equation Workout examples

http://www.learncbse.in/ncert-class-10-math-solutions/

http://www.learncbse.in/rd-sharma-class-10-solutions-chapter-08-quadratic-equations/

00:02 Word problem Q3. Is it possible to design a rectangular mango grove whose length is twice its breadth, and the area is 800 m^2? If so, find its length and breadth.

00:04 From step:1 00:21 From step:2 01:00 From step:3 01:14 From step:4

02:17 Word problems on Quadratic Equation (Problems based on Ages)

02:20 Word problem Q4. Is the following situation possible? If so, determine their present ages.The sum of the ages of two friends is 20 years. Four years ago, the product of their ages in years was 48.

Nature of roots

In the standard form of quadratic equation ax^2 + bx + c = 0, the value D=b^2-4ac is called Discriminant of quadratic equation.Based on Discriminant, we say real roots or not exist for a quadratic equation or not.Group of problems are solved on Nature of roots of quadratic equation.

Nature of roots of quadratic equation.

If Discriminant D greater than 0 then real roots exist.

If Discriminant D less than 0 then no real roots exist.

If Discriminant D=0 then roots are equal.

Reference book for the above video is

National Council of Educational Research and Training (NCERT) Book for Class 10 Subject: Maths

This Video is also refers as CBSE Class 10 mathts NCERT Solutions Chapter 9 Quadratic Equations

This video is suited for CBSE Class 10 maths Quadratic Equations.

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