Question

((3x)^3*x^-9) : (x^-10*2x^5)

Answer 1

27x³*x^10/(2x^5*x^9)=27x^13/(2x^14)=27/2x

Answer 2

27x^3*(1/x^9):((1/x^10)*2x^5)
=(27x^3/x^9):(2x^5/x^10)=
(27/x^6)*(x^5/2)=
=27x^5/2x^6=13.5/x