# Thread: More rational numbers! Yay!

1. ## More rational numbers! Yay!

alrighty. so here we got...

This..

and me and my dad cant figure out how they get the middle number at all!~

2. Originally Posted by Cait
alrighty. so here we got...

This..

and me and my dad cant figure out how they get the middle number at all!~
Here...any questions?

. . . . . . . . . . . . . x + 8 . . . . . x + 1 . . . . . . . . x + 8 . . . . . . . .x + 1
We are given: . ------------ + ------------- . = . ---------------- + ----------------
. . . . . . . - . . . x² - 5x - 6 . . x² - 4x - 5 . . . .(x + 1)(x - 6) . . (x + 1)(x - 5)

The Least Common Denominator is: .(x + 1)(x - 6)(x - 5)

. . . . . x + 8 . . . . x - 5 . . . . . .x + 1 . . . . x - 6
. . ---------------- · ------ .+ .---------------- · ------
. . (x + 1)(x - 6) . .x - 5 . . . (x + 1)(x - 5) . x - 6

. . . .(x + 8)(x - 5) + (x + 1)(x - 6)
. = . -----------------------------------
. . . . . . . (x + 1)(x - 6)(x - 5)

. . . . x² + 3x - 40 + x² - 5x - 6
. = . -------------------------------
. . . . . (x + 1)(x - 6)(x - 5)

. . . . . . .2x² - 2x - 46
. = . ------------------------
. . . . (x + 1)(x - 5)(x - 5)

4. Uck XD thanks guys.

It's amazing how much putting a wrong sign or no parenthasis will royally screw you up.. @_@...

This is why math = not cait's good subject XD!

Thanks again..

I'm done with my 2nd section now.. and there's only 4 more problems left.. and hopefully my dad will understand those..

If he does... UNTIL TUESDAY NIGHT, math forum! XD

~Cait