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January 30, 2015

January 30, 2015

Posted by **Alex** on Wednesday, May 2, 2012 at 11:38am.

The answer is -36/5 I just need to know how to do it.

- Algebra 2 -
**Steve**, Wednesday, May 2, 2012 at 12:12pm3^-2 = 1/3^2 = 1/9

2^-2 = 1/2^2 = 1/4

1/9 - 1/4 = -5/36

(-5/36)^-1 = 1/(-5/36) = -36/5

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