Pedro knows that the cube root of x^2 can be written as x^2/3. which is the best explanation of why that is true? a. since (x^m)^n = x^mn, (x^3) = x^2
b. since (x^m)^n = x^mn, (x^2/3)^3 = x^2
c. since (x^m)(x^n) = x^mn, (x^2/3)(x^3) = x^2
d. since (x^m)(x^n) = x^m+n, (x^3)(x^2/3) = x^2