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Mathematics 9 Online
OpenStudy (anonymous):

(9x)^ -2 (9) (9) = 81x^2 ?

OpenStudy (aravindg):

81x^2-2

OpenStudy (aravindg):

\[81 x^2-2\]

OpenStudy (anonymous):

The problem says to only use positive exponents

OpenStudy (anonymous):

\[\dfrac {1} {81x^2}\]

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