Question

Which expression is equivalent to (7^3)−2?

Answer 1

(7^3)-2=341
(7*7*7)-2=341

Answer 2

reemmeber

`(x^m)^n=x^(mn)` and

`x^(-m)= (1)/(x^m)`

so

`(7^3)^(-2)=7^(-6)= (1)/(7^6)`