Solving Quadratic Equations by Factoring | Practice examples

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

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

00:02 CBSE Class 10 maths NCERT Solutions chapter 10 Quadratic Equations Q1. Find the roots of the following quadratic equations by factorisation:

(i) x^2– 3 x – 10 = 0 (ii) 2x^2+ x – 6 = 0 (iii)sqrt(2)x^2+7x+5sqrt(2) (iv) 2x^2– x+1/8 = 0 (v) 100 x^2 – 20 x + 1 = 0

00:21 (i)

00:30 Factoring Quadratic Equation procedure

Find two numbers so that their product is the product of first and last terms and also their sum is the middle term.

00:55 Splitting of middle term

0:53 (ii)

02:05 factoring quadratic equations

02:20 Factorisation by splitting middle term

03:52 (iii)

04:00 Learn to solve quadratic equations by factoring

04:05 Find two numbers so that their product is the product of first and last terms and also their sum is the middle term.(Factoring)

05:55 (v)

factoring definition:Finding what to multoply together to get an required expression either by splitting or grouping terms.

07:33 Repeated roots of a quadratic equation.

07:51 (iv)

08:00 Write quadratics in standard form.

08:22 Factoring of quadratic equation defination is explined.

09:39 Equal roots of quadratic equation.

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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CBSE Class 10 maths NCERT Solutions chapter 10 Quadratic Equations

NCERT solutions for CBSE Class 10 maths Quadratic Equations

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quadratic equation solving quadratics by factoring word problems

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