EM-2663

Laws of indices

E Math · Secondary 4 · Medium · Laws of indices

Simplify

\left(\dfrac{1}{3}x^{-1}\right)^2 \div (9x^4)

, giving your answer in the form

ax^n

, where

a

and

n

are rational numbers.

$\dfrac{1}{81}x^{-6}$
$\dfrac{1}{81}x^{2}$
$\dfrac{1}{9}x^{-6}$
$\dfrac{1}{9}x^{-2}$

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