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Jan 27, 2020 8:48 am
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
92% (00:38) correct
8%
(01:05)
wrong
based on 495
sessions
History
Date
Time
Result
Not Attempted Yet
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) \(–5k^2 – 10k\)
(A) \(25k^2 + 10k\)
(B) \(25k^2 – 10k\)
(C) \(5k^2 + 10k\)
(D) \(–5k^2 + 10k\)
(E) \(–5k^2 – 10k\)
Jan 27, 2020 3:10 pm
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Bunuel
Take: \(t^2 – 2t\)
Replace \(t\) with \(–5k\) to get: \((–5k)^2 – 2(–5k)\)
Simplify to get: \(25k^2 + 10k\)
Answer: A
Cheers,
Brent
