Simplify the Expression: (2x^n/y^n)*(y/2x)^2

Question
Simplify (2x^n/y^n)*(y/2x)^2
STEP 1:   Observe the given expression: If you observe the expression, then you notice that it contains a term in which a quotient is raised to a power. The first step in simplifying the expression will obviously be to simplify that term.

The exponent law which can be helpful for this purpose is: The law simply means to bring the power into each term of the quotient. See what happens when we apply this law. STEP 2:    The simplification of the term isn’t over yet. The denominator (2x)2 can be rewritten using the law:

(ab)n = anbn
Keep in mind that to raise a term to the second power means to multiply it by itself two times. STEP 3:    What we want to do here is to write as a product of quotients such that all expressions with like bases are brought together. Since 4 goes evenly into 2, you cancel these numbers. STEP 4:    Now, the operation left is to divide powers with like bases. When you divide, the exponents subtract. The final simplified expression that you get is: iPod Touch & iPhone