Question

y / y^2-y-20 - 2 / y+4

HELP APPRECIATED

Answer 1

factor the first denominator (y^2 - y - 20) into (y-5)(y+4)
now, do you see what you need to do to get a common denominator?

Answer 2

how do you get rid of the y^2

Answer 3

PLease use brackets.
@j-free

Answer 4

is this your expression?
\[\huge \frac{y}{y^2-y-20}-\frac{2}{y+4} \]

Answer 5

that's HUGE.

Answer 6

(y/y^2-y-20) - (2/y+4)

Answer 7

yes... it is... among other things... :)

Answer 8

@dpaInc YES YES

Answer 9

Indeed. ;D

Answer 10

@j-free , started you off with factorizing the denominator of that first rational expression. can you get that second fraction to have the common denominator?

Answer 11

i meant @BTaylor ... ^^^

Answer 12

2(y+2)

Answer 13

not quite. you need to multiply the entire second term by (y-5)/(y-5)

Answer 14

y+4/y-5

Answer 15

y+20/y+25

Answer 16

\[\frac{y}{(y+4)(y-5)}-\frac{2(y-5)}{(y+4)(y-5)}\]
now combine the numerators...

Answer 17

y-5 right?

Answer 18

no, you get as your numerator y-2y+10 --> 10-y
I believe that is as simple as you can make it.

Answer 19

dont the denominators just cancel out now?

Answer 20

no, the final answer is
\[\frac{10-y}{(y+4)(y-5)}\]
I just didn't include the denominator in my last response.

Answer 21

10-y / y^2-20

Answer 22

no, 10-y / y^2-y-20