Question

$(\frac{3}{2}) x^{-2}$

Answer 1

$(\frac{3}{2}) \cdot x^{-2} = \frac{3}{2} \cdot \frac{1}{x^2} = \boxed{\frac{3}{2x^2}}$

Answer 2

 Para solucionar a questão devemos saber que: $a^{-1}=\frac{1}{a}$.

 Com isso, 

$\frac{3}{2}\cdot x^{-2}=\\\\\frac{3}{2}\cdot \frac{1}{x^2}=\\\\\boxed{\frac{3}{2x^2}}$