Question

Which expression is equivalent to 3^2 x 3^-1

Answer 1

Exponents =

3² x 3^-1 equivalent to 3

why?

let's simplify,

in formula :

`a^b × a^c = a^(b + c)`

`3^2 × 3^(-1)= 3^(2 + (-1))`

`3^2 × 3^(-1)= 3^(1)`

when 3¹ is equivalent to 3