SAT Polynomials

Level pending

If \( x = (k-2)(k+2) \), which of the following equals \( x - 4 \)?

(A) \( \ \ k-8 \)
(B) \(\ \ k \)
(C) \(\ \ k^2 - 8 \)
(D) \(\ \ k^2 - 4 \)
(E) \(\ \ k^2 \)

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