Question

r = (u+v)^2
/ (x+y)

solve for v

Answer 1

best i got was r(x+y)= u^2 +2uv +v^2

Answer 2

its a quadratic eqn in v ..see ??

Answer 3

\[r(x+y)=(u+v)^2\]
\[\pm\sqrt{r(x+y)}=u+v\]
\[v=-u\pm\sqrt{r(x+y)}\]

Answer 4

even without quadratic,,you can take root of both sides and solve for v ..
note : you have to solve 2 times,,one with +r and other -r

Answer 5

how do you know you have to take plus or minus, in satellite's answer?

Answer 6

is it cause i can't realistically take the square root of a negative number? so that twill be a nonreal answer therefore being able to be discarded?

Answer 7

thats not unreal soln..plus and minus both come into play as both when squared yield same term.. thus his solution also gives 2 answers..which you should get from any other soln.

Answer 8

my brain hurts.

Answer 9

lol.. ;)