Question

solve 2x^2 -8x =-7

Answer 1

What are your choices? I want to compare my result.

Answer 2

My choices are:
a. -2 plus or minus sqrt 2
b. -2 plus or minus 2(sqrt 2)
c. 2 plus or minus sqrt 2 over 2
d. 2 plus or minus (sqrt 2 over 2)

Answer 3

trying to figure out what formula to solve this...

Answer 4

r u there, blank?

Answer 5

I'm here. Just a second...

Answer 6

Oh, thank you

Answer 7

It is C or D but I can't see the difference. What is the difference besides the parenthesis?

Answer 8

Ok so in D. it is the square root of two over two. With C. it's everything over 2

Answer 9

Ok so it is D. It has to look like this:
\[x = 2\pm \frac{ \sqrt{2} }{ 2 }\]

Answer 10

yes that's it! you're my hero! thank you so much!

Answer 11

ǝɯoɔlǝʍ ǝɹ,noʎ :)

Answer 12

wow! how'd you do that????

Answer 13

It's interesting so I use it as my signature.

Answer 14

do you have a Astronaut keyboard : )

Answer 15

lol :)

Answer 16

it is so cool!!

Answer 17

have a good one and thanks for the help!