Question

what is 3^(-2)-2? and 3^(-1)-2

Answer 1

\[\frac{ 1 }{ 3^{2} }-2\]
\[\frac{ 1 }{ 9 }-\frac{ 18 }{ 9 }=\frac{ -17 }{ 9 }\]

Answer 2

remember the exponential rule \[a^{-m}={1\over a^m}\]

Answer 3

thank you

Answer 4

Since its raised to a negative it should become:
\[\frac{ 1 }{ 3^2 }-2\]

Answer 5

a negative exponent is called a "reciprocal"

Answer 6

you can figure out the second one using the rule electrokid just mentioned

Answer 7

yes thank you @electrokid

Answer 8

Yeah @electrokid gave you a great 'definition' from which you can work thorough the next problem.

Answer 9

thanks