(2/hn^9)^2
To simplify the expression (2/hn^9)^2, we need to square both the numerator and the denominator separately.
Starting with the numerator, we have 2^2, which is equal to 4.
Moving on to the denominator, we have (hn^9)^2. To square this expression, we need to square both the h and n^9 terms separately.
For h^2, we simply multiply h by itself: h^2 = h * h.
For (n^9)^2, we multiply the exponents: (n^9)^2 = n^(9 * 2) = n^18.
Now, we can rewrite the expression as 4 / (h^2 * n^18).
This is the simplified form of the given expression.