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x^2>36 \[x \ge \pm6\]
Options provided, A) x > 6 B) x < 6 C) x > -6 D) x <-6 or x >6
@Rosh007 Yes ?
@Rosh007 Please help !
So x > +- 6
Please check out the CoC-http://openstudy.com/code-of-conduct @Otonashi
mmmm... I am not sure about how it comes.. since it is inequality... have to refresh.. my memory...
@nubeer Please help !
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
not helpful ^^
solving for you is not the right way to help you understand at all :)
but a method is there.... not by mathematical.. but by anaysis... you will b able to understand
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
@tamtoan I dont need the answer,i dont even care about the answer
it is best suited for inequality
what will i do of the answer lol :D
@Rosh007 Well it is fun to revise things back after 2 years,Rusted brains lol.
did you try factoring x^2 - 36 ? what are the 2 factors ?
|dw:1353051849999:dw| Lets talk about the graph which makes me help understanding it.
@ha ha.... :)... by analyais it is a lot simpler... and may able to form mathematics from analysis too ;)
Well i got it x >6 or x < -6
The possible solutions . Thanks alot anyways.
I wish I could give a best response to hba too... :(
@Rosh007 give it to @tamtoan
rosh, (x-6)(x+6) > 0 ....this can only happen when both factors are possitive or both are negative
@hba yup.. I had given....... @tamtoan sure thanks I figured out..... & that is what hba got by analysis