Question

Simplify the following.

1. x/ (x-(1/2))
2.(x-(1/x))/(x+(1/x))
3.((25/a)-a/5+a)

Answer 1

1#
multiply by 2/2
x/(x-(1/2)) * 2/2
= 2x/(2x - 1)

Answer 2

oh i got number 1 already, but thanks though. I don't know number 2 and 3.

Answer 3

hint :
multiply by x/x for number 2

Answer 4

so the answer i got was x^2-1/x^2+1

Answer 5

Is that what you got?

Answer 6

yes

Answer 7

k thanks, now what about #3?

Answer 8

can you give more the parantheses for number 3 ?

Answer 9

((25/a)-a)/(5+a)

Answer 10

ok, first like number 1 and 2 , multiply by a/a. what do you get ?

Answer 11

it cancels out the a's. right?

Answer 12

yep, but only once

Answer 13

does the a in (25-a) only get cancelled out?