Need help with math. Just if you are smart

Solve
5x^-2y^10 over 2x^-1(-3x^-3y^-1)^-2

It is not an equation, so you can't solve it, you can only simplify it.

Please use proper spacing, assuming this is what is meant:

(5x^-2 * y^10) / (2x^-1 * (-3x^-3 * y^-1)^-2)
(5x^-2 * y^10) / (2x^-1 * (-3)^-2 * (x^-3)^-2 * (y^-1)^-2)
(5x^-2 * y^10) / (2x^-1 * 9^-1 * x^6 * y^2)
(5x^-2 * y^10) / (2 * 9^-1 * x^5 * y^2)
5 * 9 * 2^-1 * x^-2 * x^-5 * y^10 * y^-2
(45 / 2) * (1 / x^7) * y^8
45y^8 / 2x^7