Question

Simplified form of
(10x^3y^5)^-3

Is correct answer
1/1000(x^4)(y^15)?

Answer 1

please use this rule:
\[(x ^{m}y ^{n})^{-k}=x ^{-mk}y ^{-nk}\]

Answer 2

so is my answer right or wrong?

Answer 3

3*(-3)=?