Simplify the following expression using positive exponents only.?

0 ⤊

Simplify the following expression using positive exponents only.?

(-3xy^-4)^-2
________________
(xy^-3)^-1

2007-03-29 08:04:45 · 2 answers · asked by JORGYPORGY 1 in Science & Mathematics ➔ Mathematics

2 answers

(-3xy^-4)^-2 ....(-3)^-2 • x^-2 • y^8
---------------- = -------------------------- =
(xy^-3)^-1 ........x^-1 • y^4

x^-1 • y^4 ......y^4
------------- = --------
9 ...................9x

2007-03-29 08:21:05 · answer #1 · answered by Philo 7 · 0⤊ 0⤋

(-3xy^-4)^-2 / (xy^-3)^-1 =
(-3^-2)(x^-2)(y^8) / (x^-1)(y^3) =
y^5 / 9x

2007-03-29 15:17:14 · answer #2 · answered by tryzub91 3 · 0⤊ 0⤋