The answer is (9x^8y^3)/2.
Answer:
Andre has the correct answer. When simplified his answer is equivalent to the original equation.

First, simplify

to

/ Your problem should look like:
Second, multiply both sides by 36. / Your problem should look like:
Third, multiply both sides by -1. / Your problem should look like:
Fourth, switch your sides. / Your problem should look like:

Answer:
C) 21