Negative exponents are essentially the inverse of the base elevated to the corresponding positive exponent. For instance, a^-n is the same as 1/a^n. In simpler terms, a negative exponent reveals the number of times one needs to divide 1 by the base, instead of multiplying it. The rules applied to these negative exponents are similar to those used for positive exponents.
| Topic | Problem | Solution |
|---|---|---|
| None | 问题 Simplify $\left(7 b^{3}\right)^{2} \cdot\left(… | Apply the power of a power rule: $(a^m)^n = a^{mn}$ |