Question

what is (5^4/5 * 5^4/5)^-10

Answer 1

First, if there's a common base and they're being multiplied, just add the exponents and combine them. Then remove the negative on the 10 by putting it over one. Then distribute the exponent.
\[(5^{4/5} \times 5^{4/5})^{-10} = (5^{8/5})^{-10}\] =
\[1\over(5^{8/5})^{10}\] =
\[1\over5^{80/5}\] =
\[1\over5^{16}\]

Answer 2

so you don' multiply the the 2 5's

Answer 3

By multiplying the 2 fives, you add the exponents. It's a rule.\[a ^{b} \times a ^{c} = a ^{b + c}\]

Answer 4

o well thanks a ton

Answer 5

You're welcome. :)