Question

please solve the question​

Answer 1

As x=(3/7)-3

x-² = -(27/343) -²

x-² =

Answer 2

Answer:

$(\frac{3}{7})^{6}$ or $\frac{729}{117649}$

Step-by-step explanation:

   $x = (\frac{3}{7})^{-3}$

⇒ $x^{-2} = [ (\frac{3}{7})^{-3} ] ^{-2}$

⇒ $x^{-2} = (\frac{3}{7})^{6} =\frac{729}{117649}$

Hope it helps...

Thank you