Question

My teacher gave us the answer key but I don't understand this question: Write two expressions that are equivalent to (8x^3*y^6)/(2x^5*y), with the answer being (9y^5)/(y^2) or 9x^-2*y^5. How did my teacher get this answer?

Answer 1

Is there any possibility of her answer key saying these instead? I'm not really seeing where her solutions came from...
\[\frac{ 4y ^{5} }{ x^{2} }\]
\[4x^{-2}y^{5}\]