If x^2-36>0,what are the possible values of x ?

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- hba

If x^2-36>0,what are the possible values of x ?

- katieb

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- hba

x^2>36
\[x \ge \pm6\]

- hba

Options provided,
A) x > 6
B) x < 6
C) x > -6
D) x <-6 or x >6

- hba

@Rosh007 Yes ?

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- hba

@Rosh007 Please help !

- hba

So x > +- 6

- anonymous

D

- hba

Please check out the CoC-http://openstudy.com/code-of-conduct @Otonashi

- anonymous

mmmm... I am not sure about how it comes.. since it is inequality... have to refresh.. my memory...

- hba

@nubeer Please help !

- tamtoan

if you want to solve, try factor the x^2 - 36 ...and what condition make the product of 2 factors greater than zero ?...try that, you should come out with the right answer

- hba

not helpful ^^

- tamtoan

solving for you is not the right way to help you understand at all :)

- anonymous

but a method is there.... not by mathematical.. but by anaysis... you will b able to understand

- nubeer

hmm honestly.. i dont remmeber how but option is D. u can say its trick the way i rmemeber
when x<+-a then sol is -a+-a then sol is x<-a and x>a

- hba

@tamtoan I dont need the answer,i dont even care about the answer

- anonymous

it is best suited for inequality

- hba

what will i do of the answer lol :D

- hba

@Rosh007 Well it is fun to revise things back after 2 years,Rusted brains lol.

- tamtoan

did you try factoring x^2 - 36 ?
what are the 2 factors ?

- hba

|dw:1353051849999:dw|
Lets talk about the graph which makes me help understanding it.

- anonymous

@ha ha.... :)... by analyais it is a lot simpler... and may able to form mathematics from analysis too ;)

- hba

Well i got it x >6 or x < -6

- hba

The possible solutions . Thanks alot anyways.

- anonymous

:)

- anonymous

I wish I could give a best response to hba too... :(

- tamtoan

rosh, (x-6)(x+6) > 0 ....this can only happen when both factors are possitive or both are negative

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