How does a negative exponent affect our answer? Before you assume that the answer must be negative, think again!
Positive and negative exponents is a free educational video by Khan Academy.It helps students in grades 8 practice the following standards 8.EE.A.1.
1. 8.EE.A.1 : Know and apply the properties of integer exponents to generate equivalent numerical expressions. For example, 3^2 × 3^(–5) = 3^(–3) = 1/(3^3) = 1/27..