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solve x2-4=12
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move the 12 to the other side
ok, wouldn't i move the 4 over and then i want to say square the x
4+x2-4=12+4 x2=16?
Oops, sorry I made a mistake. Move the 4 over and then take the square root of that.
Yes, there you go :P
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x=8 right?
Nope, you're taking the square root not dividing.. big difference
ok this is hard without my calculator... smh
Ha, here I'll give you a hint.. *cough* 4 *cough*
lol thanks. I lost my graphing calculator. it's also been a year since I touched math so ur a LIFESAVER!
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Naw >.> btw when you take the square root of anything you have two answers, a positive and negative. \[x= \pm4\]
That does sound familiar. ok thanks for the tip!
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