Solving Quadratic equations by Factoring | Word problems |Quadratic equation by factoring examples

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

Solve the equation by Quadratic formula.

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 the equation by Quadratic formula.

00:02 Q2 Word problems on Quadratic Equation (Problems on Numbers)

00:05 (i) John and Jivanti together have 45 marbles. Both of them lost 5 marbles each, andthe product of the number of marbles they now have is 124. We would like to find out how many marbles they had to start with.

00:09 From step:1 00:34 From step:2 01:54 From step:3 03:10 factoring quadratic equations (Word problems)

05:34 Word problems on Quadratic Equation (Problems on Numbers)

05:36(ii) 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.

05:39 06:09 07:15 07:46 Learn how to factorise quadratic equations

09:45 Q3 Find two numbers whose sum is 27 and product is 182.

09:46 09:57 10:30 10:50 Solve qiadratic by factoring.

12:37 Q4. Find two consecutive positive integers, sum of whose squares is 365.

12:40 From step:1 12:52 From step:2 13:13 From step:3

13:33 Write quadratics in standard form

14:46 Factorise defination:Finding what to multoply together to get an required expression either by splitting or grouping terms.

17:12 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.

17:15 From step:1 17:36 From step:2 18:04 From step:3 18:18 From step:4

19:22 Factoring Quadratics

21:20

21:21 From step:1 21:58 From step:2 23:10 From step:3 23:40 Factorising quadratic equations.From step:4

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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