Mathematics
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OpenStudy (anonymous):
underroot 3x+1-under root x-1=2
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hartnn (hartnn):
to solve such equations,first try to keep,only one square root sign in one side of = sign.....can u do that?
OpenStudy (anonymous):
leme try
OpenStudy (anonymous):
can I bring 2 on the other side of the equation?
OpenStudy (anonymous):
and make it -2
hartnn (hartnn):
its not required,but if u do that,still there will be only one,sqrt sign on one side of = sign...
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OpenStudy (anonymous):
?:(
OpenStudy (anonymous):
I can multiply
hartnn (hartnn):
in short,keep 2 on other side only :P
OpenStudy (anonymous):
ok and multiply the rest
OpenStudy (anonymous):
?
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hartnn (hartnn):
no,then square both sides...
OpenStudy (anonymous):
and then cancel
hartnn (hartnn):
then u cancel square root sign and square u took,from one side...
OpenStudy (anonymous):
yeah I cancelled all and no sq root now
hartnn (hartnn):
but u should have one square root on other side!
because u use the formula: (a+b)^2=a^2+2*a*b+b^2 ....
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OpenStudy (anonymous):
when I left sq root on the oher side on 2?
OpenStudy (anonymous):
I left sq root on 2?
OpenStudy (anonymous):
I am so lost . :(
hartnn (hartnn):
wait,let me show u...
OpenStudy (anonymous):
ok
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hartnn (hartnn):
|dw:1345751306962:dw|
this is what i get when squaring,did u get till here?