A algerba question I need a little help with

[From: ] [author: ] [Date: 12-04-30] [Hit: ]

What is (2x)^-2?? And how did you get that answer?

(2x)^-2 =
2^-2 * x^-2 =
1/2^2 * 1/x^2 =
1/(4x^2) = x^-2/4

How do you get that answer to what?

Durrrrr!

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