FailingMath
FailingMath
08-04-2017
Mathematics
contestada
solve 3^2x =1/81
find x
Respuesta :
ijustneedsomehelp
ijustneedsomehelp
08-04-2017
3^2x = 1/81
3^2x = 3^-3
by equating powers of 3,
2x = -3
x = -3/2
hope this helps :)))
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Аноним
Аноним
08-04-2017
[tex]3^2x = \dfrac{1}{81} [/tex]
[tex]9x= \dfrac{1}{81} [/tex]
[tex]x= \dfrac{ \dfrac{1}{81} }{9} [/tex]
[tex]x= \dfrac{1}{81*9} [/tex]
[tex]x= \dfrac{1}{729} [/tex]
Answer Link
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