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If 140^-8 = 1/140^8, does 23^7 = 1/23^-7? Also, does 12^-3 x 12^2 = 1/12^3 x [(12^2)/1] then simplified to 12^2 / 12^3 or 12^-1?

 Dec 7, 2018
edited by Guest  Dec 7, 2018
edited by Guest  Dec 7, 2018
edited by Guest  Dec 7, 2018

Best Answer 

 #1
avatar+18433 
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23^7 = 1/23^-7       Yes...when you move exponents up or down in a fraction the sign changes.

 

12^(-3)  =   1 /(12^3)        12^(-3) * 12^2 = 12^(-3+2) = 12^-1 = 1/12      or(12^(-1) )

 Dec 7, 2018
 #1
avatar+18433 
+2
Best Answer

23^7 = 1/23^-7       Yes...when you move exponents up or down in a fraction the sign changes.

 

12^(-3)  =   1 /(12^3)        12^(-3) * 12^2 = 12^(-3+2) = 12^-1 = 1/12      or(12^(-1) )

ElectricPavlov Dec 7, 2018
 #2
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thanks

Guest Dec 7, 2018

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