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Difficulty—
If \(t=-5k,\) what is \(t^2-2t\) in terms of \(k?\)
(A) \(25k^2+10k\)
(B) \(25k^2-10k\)
(C) \(5k^2+10k\)
(D) \(-5k^2+10k\)
(E) \(-5k^2-10k\)
Answer: A
Source: GMAT Prep
(A) \(25k^2+10k\)
(B) \(25k^2-10k\)
(C) \(5k^2+10k\)
(D) \(-5k^2+10k\)
(E) \(-5k^2-10k\)
Answer: A
Source: GMAT Prep
