completing the square word problems with answers | completing the square method
Standard form of quadratic equation
First combine all the like terms in the quadratic equation.
Secondly, degree of each term must drop from left to right starting from 2.
In our videos, you will study quadratic equations, and various ways of finding their roots.A quadratic equations can be solved by any one the given methods (i)Method of completing the square (ii)Factoring quadratic equation (iii) Quadratic Formula.
Here, in this video, we solve some quadratic equations using completing the square method which is based on using identity (a+b)^2.
Later you will also see some applications of quadratic equations in daily life situation.We solve word problems on quadratic equations
00:02 Q1 Find the roots of the following quadratic equations, if they exist, by the method of
completing the square:
Q1 (i) 2x^2– 7 x + 3 = 0
00:18 Compare quadratic equation with general form of quadratic equation
00:38 Discriminant of Quadratic Equation
01:34 add Square of half of coefficient of x
04:12 Obtain roots of quadratic equation
05:10 Q1 (ii) 2x^2 + x – 4 = 0
05:28 Find Discriminant of Quadratic Equation
06:30 add Square of half of coefficient of x
08:44 find 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.
Scoop it! LearnCBSE.in
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