Click to Chat

0120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 550 off
USE CODE: SSPD25

```				   is there anyone who can explain me the completing the square method in quadratic equation............
```

6 years ago

Share

```										Dear Deepak,
First recall the algebraic identities

We shall use these identities to carry out the process called Completing the Square.  For example, consider the quadratic function

What can be added to yield a perfect square?  Using the previous identities, we see that if we put 2e=8, that is e=4, it is enough to add   to generate a perfect square.  Indeed we have

It is not hard to generalize this to any quadratic function of the form   .  In this case, we have 2e=b which yields e=b/2.  Hence

Example: Use Complete the Square Method to solve

Solution.First note that the previous ideas were developed for quadratic functions with no coefficient in front of   .  Therefore, let divide the equation by 2, to get

which equivalent to

In order to generate a perfect square we add   to both sides of the equation

Easy algebraic calculations give

which give the solutions to the equation

We have developed a step-by-step procedure for solving a quadratic equation; or, in other words, an algorithm for solving a quadratic equation.  This algorithm can be stated as a formula called Quadratic Formula
Please feel free to post as many doubts on our discussion forum as you can. If you find any question Difficult to understand - post it here and we will get you the answer and detailed solution very quickly. We are all IITians and here to help you in your IIT JEE preparation. All the best Deepak !!!Regards,Askiitians ExpertsRohith Gandhi P
```
6 years ago

# Other Related Questions on Algebra

how to find number of positive integral solution of x+y+z=20

Min values of x,y and z will be 1 so remaining 17 have to be distributed over these numbers Just divide 17 in three parts using 2 partitions which can be done by 19C2 ways as 2 paritions...

 Harsh Patodia one month ago
In class 12, just few months left.. So just brushing up few topics. Need help with this complex number sum. Thank you.

Hello, I understand the situation. But unfortunately Your question in the attachement is blurred. It’s not clearly visible. So pls repost it this time try to type the question by yourself...

 Vikas TU 28 days ago
A certain polynomial P(x), x€R when divided by x-a, x-b, x-c leaves remainders a,bb,c respectively. then find the remainder when P(x) is divided by (x-a)(x-b)(x-c) where a,b,c are distinct.

Using Remiander theorem f(a) is the remainder when f(x) is divided by x-a when f(x) is divided by q(x) the remainder will be having degree less than q(x) so when P(x) is divided by...

 Harsh Patodia one month ago
What is the parallelogram law of two vectors and what is definations of dot product and cross product

Acccording to the parallelogram law of vector addition: "If two vector quantities are represented by two adjacent sides or a parallelogram. then the diagonal of parallelogram will be equal...

 KALYAN 10 months ago

HELLO PRABHAKAR parallelogram law of vector addition states that when two vectors are represented by two adjacent sides of a parallelogram by direction and magnitude then the resulatant of...

 raj 9 months ago

in parallelogram of vectors two vectors are represented by two adjacent sides in parallelogram of vectors the square of the diagonal is equal to squre root of two adjacent sides squares and ...

 RAMCHANDRARAO 9 months ago
A chord of parabola y^2=4ax subtends right angles at the vertex. Find the locus of point of intersection of extremities

point of intersection of extremities??? How is that possible Please post correct question.

 Nishant Vora 2 months ago

A chord of parabola subtends a right angle at the vertex. Find the locus of the point of intersection of tangents at its extremities.

 Shubham 2 months ago
The area of loop of the curve ay^2=x^2(a-x) is 15a^2/p,then p=?

Hii try to divide it along any line passing through centre and then do the double integration of figure with respect to x and y . You will get answer in this case by this method

 Sourabh Singh 2 months ago
View all Questions »

• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: R 15,000
• View Details
Get extra R 3,750 off
USE CODE: SSPD25

Get extra R 550 off
USE CODE: SSPD25

More Questions On Algebra