Simplify and write the answer in the exponential form.
(i) `(3^7/3^2) xx 3^5`
(ii) `2^3 xx 2^2 xx 5^5`
(iii) `(6^2xx6^4) -: 6^3`
(iv) `[(2)^3 xx3^6] xx 5^6`

Explanation

(i) `(3^7)/(3^2)*3^5 = (3^7*3^5)/(3^2)`

`= 3^(7+5)/2^2`

`= 3^12/3^2`

`= 3^(12-2) = 3^10`

(ii) `2^3*2^2*5^5`

`= 2^5*5^5`

`= (2*5)^5= 10^5`

(iii) `(6^2*6^4) -: 6^3`

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