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Mathematics 17 Online
OpenStudy (anonymous):

Next question..

OpenStudy (anonymous):

so its the same thing find the restrictions.

OpenStudy (anonymous):

x^2 +5x+6/x+4 * x^2+x-12/X^2+x-2

OpenStudy (anonymous):

i got (x-3)(x+3)/x-1

OpenStudy (anonymous):

i just didnt get the restrictions..

OpenStudy (anonymous):

its either -2,-4,1 or -2, -4

Nnesha (nnesha):

denominator can't be what ?? o^_^o

OpenStudy (anonymous):

Huh.. :/?

Nnesha (nnesha):

forgot *equal* to what ?

Nnesha (nnesha):

denominator can't be equal to 0 right just like we did ?? \[\huge\rm x-1 \cancel{=}0\]solve for x

OpenStudy (anonymous):

ok so 1..

Nnesha (nnesha):

sOoOoOoO..... ?????? ?

OpenStudy (anonymous):

-2,-4,1 haha..

Nnesha (nnesha):

what is at the denominator ?

OpenStudy (anonymous):

so if the bottom is x-1..

Nnesha (nnesha):

yes right bottom is x-1 like i said denominator can't be equal to 0 bec you can't divide anything by 0 it would be undefined \[\huge\rm x-1 \cancel{=}0\] solve for x

OpenStudy (anonymous):

so how do the -2 and -4 take part?

OpenStudy (anonymous):

so the 1, would have to be included in the restrictions?

Nnesha (nnesha):

forget about the numerator it's okay if you get 0 at the numerator 0/3 =0 that's fine we are okay with it the problem is denominator can't be equal to 0 bec \[\huge\rm \frac{ 9 }{ 0 }= undefined \] you can't divide by 0 so just x-1 can't equal 0 solve for x \[x\cancel{ =} 1\]

OpenStudy (anonymous):

Ok got it got it. im just confused if you would say -2,-4, and 1, since you cant equal that

Nnesha (nnesha):

why x can't be 1 bec when you plug in 1 for x you will get 0 \[\frac{ ? }{ x-1 } = \frac{ ? }{ 1-1 } =\frac{ ? }{ 0 }\] 0 at the bottom not a good sign:( so that's why \[x \cancel{ = }1 \]

OpenStudy (anonymous):

Thank you! :D

Nnesha (nnesha):

my pleasure! o^_^o

OpenStudy (anonymous):

its 2am.. and im still doing math :(

Nnesha (nnesha):

aww gO_O tO_O sleep!

OpenStudy (anonymous):

Cant, have soo much math to finish! :(

Nnesha (nnesha):

hmm alright gO_Od luck!

OpenStudy (anonymous):

Thank you again! ill write you if i need your greater intelligence

Nnesha (nnesha):

my pleasure and thanks o^_^o .-.

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