## Algebra 1: Common Core (15th Edition)

The expression is a$b^{2}$
The expression $\frac{a}{b^{-2}}$ can be written with all of the positive exponents in the numerator; as we bring the b to the numerator, the sign of the exponent changes from negative to positive. $\frac{a}{b^{-2}}$ = a$b^{2}$