Question

1. Simplify the following expression, and rewrite it in an equivalent form with positive exponents.

4x^-54^
-----------------
20x^3 4^-2

Answer 1

first line 4x^-5 4^-4

Answer 2

\[\frac{4x^{-5}4^{-4}}{20x^34^{-2}}\]

Answer 3

the four is a y

Answer 4

maybe

Answer 5

4x^-5 y^-4
------------
20x^3 y^-2