Question

how do i solve this equation

Answer 1

$a^{-n}=\dfrac{1}{a^n}\\\\6x^{-2}y^{-1}=6\cdot\dfrac{1}{x^2}\cdot\dfrac{1}{y^1}=\dfrac{6}{x^2y}\\\\for\ x=2\ and\ y=3\\\\\dfrac{6}{2^2\cdot3}=\dfrac{2}{4}=\dfrac{1}{2}$