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How do you write #b^-4/b^-6# using only positive exponents?

1 Answer

256 · Monzur R.

Feb 3, 2017

#b^(-4)/b^(-6)=b^2#

Explanation:

Notice
#b^(-4)/b^(-6)=b^(-4)(1/b^(-6))#

Also, since #x^(-1) = 1/x#, we can say

#b^(-4)(1/b^(-6))=(1/b^4)(b^6)#

And just like above

#(1/b^4)(b^6)=b^6/b^4=b^(6-4)=b^2#

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