Question

simplfy rational algebraic expression -6/x+sqrt7

Answer 1

\[x \sqrt{7} - 6\]

Answer 2

Cookies pr0x

Answer 3

?

Answer 4

you sure its not -6+x sqrt7/x?

Answer 5

\[\frac{-6}{x+\sqrt{7}}\]
\[=\frac{-6}{x+\sqrt{7}}\times \frac{x-\sqrt{7}}{x-\sqrt{7}}\]
\[=\frac{-6(x-\sqrt{7}}{x^2-7})\]

Answer 6

or 6 (sqrt7-x)/x^2-7?

Answer 7

\[-6/x +\sqrt{7}\]
^This?

Answer 8

i mean the other one..

Answer 9

Oh.

Answer 10

i am willing to bet it is the one i wrote

Answer 11

ok same ans...thanks i just one to be sure..

Answer 12

i really dont knw whats the right solution..or procedure..ty again

Answer 13

\[\frac{(n+1)!}{n!}=n\] is a start

Answer 14

thanks again...

Answer 15

forget about the numbers for a minute

\[n!=n\times (n-1)\times (n-2)\times ...\times 2\] and
\[(n+1)!=(n+1)\times n\times (n-1)\times ...\times 2\]

Answer 16

so
\[\frac{(n+1)!}{n!}\] leads to a whole raft of cancelation, leaving only
\[n+1\]

Answer 17

so all you are left with in your problem is
\[\frac{3(n+1)}{5}\]

Answer 18

yup

Answer 19

so the ans is x-5/25x^-5?

Answer 20

@edemsam yes that is it

Answer 21

ok thanks again..

Answer 22

but in other site the ans.is 150x^4-30x^2+sqrt(5)(5)/5x^2-1...but they didnt show the steps..