Question

Please explain answer

Answer 1

`\large\boxed{(1)/(18)}`

Explanation:

`a^(-n)=(1)/(a^n)`

`\text{Put}\ x=3\ \text{and}\ y=-2\ \text{to the expression}\ 2x^(-2)y^(-2):\\\\2(3^(-2))(-2)^(-2)=2\left((1)/(3^2)\right)\left((1)/((-2)^2)\right)=2\left((1)/(9)\right)\left((1)/(4)\right)=(2)/(36)=(1)/(18)`