I have a homework question on exponents, the question asks "simplify the expression and eliminate any negative exponents"
The Question is as follows $$(2x^2y^4)^3(3x^{-3}y)^2$$
and my working out
$$=(8x^6y^{12})(9x^{-6}y^2)$$ $$=72x^0y^{14}=72y^{14}$$
is the answer correct?
You are right. Technically, you don't need to eliminate the $x^0$ term as $0$ is not negative.