princesspayton9 princesspayton9

01-10-2017
Mathematics

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Please help me! And can you explain how you got that answer please?

Please help me And can you explain how you got that answer please class=

Respuesta :

01-10-2017

The answer x = -3 is correct ; not really any mistakes made but they do seem to skip a step from 8^(-1) to 2^(-3) if that is confusing you.

8 = 2^(3)
so
(8)^(-1) = (2^3)^(-1) = 2^(3*-1) = 2^(-3)

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