### Home > INT1 > Chapter 9 > Lesson 9.1.1 > Problem9-13

9-13.

Rewrite each of the following expressions without parentheses or negative exponents.

1. $( 5 a ^ { - 2 } b ^ { 3 } ) ^ { 8 } \cdot ( 5 a b ^ { - 2 } ) ^ { - 6 }$

Distribute the exponents.

$\frac{25\textit{b}^{36}}{\textit{a}^{22}}$

1. $\quad \frac { 15 x ^ { - 5 } y ^ { 2 } } { ( 3 x ^ { 2 } ) ^ { 2 } \cdot y ^ { - 3 } }$

Simplify the denominator first.