Question

(m+1)x^2+2mx+3=0 sum of roots 1 m=?

Answer 1

For myininaya

http://openstudy.com/groups/mathematics/updates/4e41d1280b8b1fdcd4b52b71

Answer 2

\[b=\frac{-2m \pm \sqrt{(2m)^2-4(m+1)(3)}}{2(m+1)}=\frac{-2m \pm \sqrt{4m^2-12m-12}}{2(m+1)}\]
\[=-\frac{-2m \pm \sqrt{4(m^2-3m-3)}}{2(m+1)}=\frac{-2m \pm 2\sqrt{m^2-3m-3}}{2(m+1)}\]
\[=\frac{-m \pm \sqrt{m^2-3m-3}}{m+1}\]
\[\frac{-m +\sqrt{m^2-3m-3}}{m+1}+\frac{-m - \sqrt{m^2-3m-3}}{m+1}=1\]

Answer 3

\[\frac{-2m}{m+1}=1\]

Answer 4

\[-2m=m+1, m \neq -1\]

Answer 5

\[-2m-m=1 => -3m=1 => m=\frac{-1}{3}\]

Answer 6

Oh dear, no

alpha + beta = -b/a (standard formula)

Answer 7

so wat is answer?

Answer 8

Am I misunderstanding the question?

Answer 9

sum of roots is 1 right?

Answer 10

yes

Answer 11

ok oh and also estudier
-2m/(m+1) is -b/a

Answer 12

and this is suppose to be one according to what he has

Answer 13

answer is -1/3?

Answer 14

if i made no mistake

Answer 15

but i'm known for making alot of mistakes
maybe you can trust me and maybe you can't
who knows

Answer 16

but it looks good to me

Answer 17

i truust u

Answer 18

lol

Answer 19

U can go do my question now:-)

Answer 20

lol

Answer 21

ok i'm gonna get on my laptop and move to the other room
i'm about to watch white collar

Answer 22

u hav a fan