Question

Simplify the expression
x^2y^4 over x^-3y^7)^-2
A. y^5/x^7
B. x^3/y
C. y^6/x^10
D. x^-6/y^-5
help?

Answer 1

\[\frac{x^2y^4}{x^{-3}y^7}=\frac{x^{2+3}}{y^{7-4}}=\frac{x^5}{y^3}\] is a good start