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Math Help - More rational numbers! Yay!

  1. #1
    Junior Member Cait's Avatar
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    Red face 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!~
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Cait View Post
    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?
    Attached Thumbnails Attached Thumbnails More rational numbers! Yay!-rat2.gif  
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  3. #3
    Super Member

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    Hello, Cait and Dad!


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


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


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

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  4. #4
    Junior Member Cait's Avatar
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    Talking

    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
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