i swear i'll never understand problems with radicals >.< anyway: show work if you can..someday i'll understand those things -.-..always confudling me..
Last edited by CaptainBlack; September 28th 2008 at 10:40 PM. Reason: language
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Originally Posted by jcube69 i swear ill nvr understand problems with gd radicals >.< anyways show work if you can..someday ill understand those buggers -.-..always confudling me.. square both sides, you get now square both sides again and continue (and please, do not make the mistake of thinking , it is wrong and will tick your professor off)
Originally Posted by Jhevon square both sides, you get now square both sides again and continue i did that u get then thus ?
Originally Posted by jcube69 i did that u get then you're right so far quadratic formula not needed. the quadratic was easily factorable thus ? yes, x = 8 or x = 1 are the solutions to the quadratic. are both solutions valid for our original problem though? also, that wasn't so hard, was it?
yes, x = 8 or x = 1 are the solutions to the quadratic. are both solutions valid for our original problem though? also, that wasn't so hard, was it? bah didnt think about that..8 woulnt work because the sqrt of 12 is not 2 thus it leaves only 1
Originally Posted by jcube69 bah didnt think about that..8 woulnt work because the sqrt of 12 is not 2 thus it leaves only 1 right. be aware that usually when you square things, you introduce erroneous solutions. you need to check when done
Originally Posted by Jhevon right. be aware that usually when you square things, you introduce erroneous solutions. you need to check when done yup... tyvm ^.^
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