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March 5, 2015

March 5, 2015

Posted by **lee** on Monday, December 10, 2012 at 12:22am.

- algebra -
**Steve**, Monday, December 10, 2012 at 12:16pmit's clear that the inverse is not a function, since there are a positive and negative value for x that give the same value for y.

y = (7-8x)^2

±y = 7-8x

8x = 7±y

x = (7±y)/8

- algebra -
**lee**, Tuesday, December 11, 2012 at 10:12amthanks

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