Question

write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in the standard form, ax^2 + bx + c = 0. solution: 9, only

Answer 1

Its bascially a formula

Answer 2

since only one root i.e. 9 is given, it means that the quadratic polynomial has two equal roots ie.e 9 and 9

This means that equation will have factors (x-9)(x-9)
so the equation is x^2 -9x -9x +81
so the required equation is x^2 - 18x + 81

Answer 3

Sorry, required equation is x^2 - 18x + 91 = 0

Answer 4

but harkirat its a case

Answer 5

91?

Answer 6

what do u mean narender, pls explain...

Answer 7

3u/u^2-1 + u/u-1, simplify…

Answer 8

sorry again!!!

required equation is x^2 - 18x + 81 = 0

PS: I am attending to too many questions simultaneously, so ....

Answer 9

thank you Harkirat

Answer 10

can you please solve the above problem too Hari?

Answer 11

3u/u^2-1 + u/u-1, simplify…

Answer 12

is it..

3u u
-------- + ------ ????
u^2 - 1 u + 1

Answer 13

u/ u-1 yes

Answer 14

ok, this is how we do it.....
We use the identity
\[a ^{2} - b ^{2} = (a+b)(a-b)\]

3u u 3u u 3u u
-------- + ------ = ----------- + ------ = ----------- + -------
u^2 - 1 u - 1 u^2 - 1^2 u-1 (u+1)(u-1) u-1

3u + u (u+1) 3u + u^2 + u u^2 + 4u
= ---------------- = -------------- = ------------
(u+1) (u-1) (u+1)(u-1) (u+1)(u-1)

Answer 15

I don't know if it can be simplified any further..........

Answer 16

perfect
it can be simplified to u(u+4)/ (u-1)(u+1)

Answer 17

correct, actually i am dead tired now and am logging off.....
It is right now 2 AM in India !!!!!!

Answer 18

where in INdia are you from

Answer 19

Its capital- Delhi !!!!

Answer 20

n where r u located??

Answer 21

I am originally from Hyderabad

Answer 22

I live in St Louis USA

Answer 23

i see..............

Answer 24

home schooling???

Answer 25

what do you do for a living Hari?

Answer 26

Kinda

Answer 27

i work in a private company and teach some students after coming back from office....

Answer 28

the thing on your ID, is that the golden temple?

Answer 29

You are so good both as a math tutor and a human being

Answer 30

absolutely right, I had visited it in January and this is a photo I took then...

Answer 31

are you into photography?

Answer 32

thx for saying that.....

Answer 33

Yeah, i have been using cameras for some 15-17 years now but mostly family photos and all
wish had more liesurely life to shoot nature etc...

Answer 34

do you use telephoto lenses?

Answer 35

I have automatic cameras with zoom

Answer 36

I have a canon 7D and 70-200 telephoto, and a 100 macro, and 10 fish-eye

Answer 37

I love photography!

Answer 38

I guess u r a keen photographer...

Answer 39

ok, it is a good hobby and can become a profession too...

Answer 40

yes I am :)

Answer 41

are you married?

Answer 42

Yes, i hv two lovely daughters.....

Answer 43

how old are they?

Answer 44

I can send them some candy if you think its okay?

Answer 45

one is 15 years old and the other is 9 years...

Answer 46

they must be keeping you busy.

Answer 47

Born and raised in Delhi?

Answer 48

yes they do

By the way what is yr real name and what standard r u in??

Answer 49

yes we all have been born n brought up in Delhi..

Answer 50

its getting late Hari, go get some sleep. Thank you once again for your time and help