Question

5+ radical 7 divided by 5- radical 7. simplify the expression.

Answer 1

(32 + 10 times (Rad 7)) divided by 12

Answer 2

can't you reduce that answer to 16 + 5 times radical 7 divided by 9

Answer 3

SO what I did was Multipiy the whole thing by 5 + Rad. 7 to get rid of the Rad. in teh denominator (5- Rad. 7) (5 + Rad.7)

Answer 4

That gives me 25 + 7 on the denominator, not 12, I'm sorry! >.<

On the numerator, I got (5 + Rad.7) square. = 25 + 10Rad.7 + 7

Answer 5

isnt the denominator 25 - 7?

Answer 6

oh yes, I was right the first time! ROFL

Answer 7

so you got it now?

Answer 8

because you end up with 25 - radical 49

Answer 9

yes, yes! xD

Answer 10

yeah but in your answer you had (32 + 10 times (Rad 7)) divided by 12

Answer 11

shouldnt it be divided by 18?

Answer 12

Yes....T.T My brain went dead sometimes!
So you got it! ^^

Answer 13

and then you can simplify it into 16 + 5 radical 7 divided by 9?

Answer 14

Yes

Answer 15

hanh, how would you find the derivative of e^2x/1+x?