Question

how do I write 243negative 2/5 in radical notation?

Answer 1

\[\large \sqrt[x]{y^z} = y^{z \over x} \]

Answer 2

\[\large 243^{-2 \over 5} \implies {1 \over 243^{2 \over 5} } \implies\cdots \]Now use the formula I gave in the first post.

Answer 3

thank you...I thought I was correct