factoring quadratic equations | Real life examples of quadratic equations | Word problems

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

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

Factorisation of quadratic equation ax^2 + bx + c = 0, can be done by finding two numbers such that their product is the product of first and last terms and also their sum is the middle term.This is illustrated in the following quadratic equations and word problems bassed on quadratic equations.

Steps to solve Word Problems:

Step 1:Read the problem carefully to know what is given and what to find out.

Step 2:Denote the unknown by a small letter like z, p etc.

Step 3:From the given condition, frame the quadratic equation Involving the unknown.

Step 4:Solve by factoring quadratic equations

Quadratic Equations Word Problems

00:02 Q4 Word Problems based on numbers

Q4. Find two consecutive positive integers, sum of whose squares is 365.

00:04 From step:1 00:14 From step:2 00:42 From step:3 02:09 From step:4

02:10 factoring quadratic equations

04:34 Q5 Word Problems based on mensuration

Q5 The altitude of a right triangle is 7 cm less than its base. If the hypotenuse is 13 cm, find the other two sides.

04:35 From step:1 04:56 From step:2

05:24 Pythagoras' Theorem Application

06:43 From step:4

08:42 Q6 Word Problems based on numbers

Q6. A cottage industry produces a certain number of pottery articles in a day. It was observed on a particular day that the cost of production of each article (in rupees) was 3 more than twice the number of articles produced on that day. If the total cost of production on that day was Rs 90, find the number of articles produced and the cost of each article.

08:43 From step:1 09:25 From step:2 10:30 From step:3 11:01 Solve Quadratic equation by factorisation method

11:05 Factorisation method

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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