1. The cardinal number is -2, the index is 5, and it is pronounced as the fifth power of negative two.

Note: n is the power of m, n is the base and m is the exponent (m is the small number in the upper right corner of n).

2. It means six times 1/2 multiplication and four times -2/3 multiplication.

Note: the m power of n refers to the product of m n (m is the small number in the upper right corner of n).