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Compare values
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29 Apr 2018, 00:40
29 Apr 2018, 00:40
Expert Reply
1
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Question Stats:
70% (00:50) correct
29% (00:43) wrong based on 48 sessions
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Quantity A |
Quantity B |
(x³ + 1)² |
\(x^6\) |
A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.
Re: Compare values
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04 May 2018, 04:01
04 May 2018, 04:01
If x is positive, then A is greater as we are adding 1 and 2x to B. But if x is negative, we will be deducting 2x from x^6+1 in which case, B would be greater.
So as no other conditions are mentioned, D is correct answer.
So as no other conditions are mentioned, D is correct answer.
Re: Compare values
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13 May 2018, 15:37
13 May 2018, 15:37
1
Expert Reply
Explanation
Plug in a value for x; you’re dealing with exponents, so keep your numbers small.
If x =0, then Quantity A is greater, so eliminate choices (B) and (C). If x = –1, though, then Quantity A = 0; Quantity B is now greater, so eliminate choice (A), and you’re left with choice (D).
Plug in a value for x; you’re dealing with exponents, so keep your numbers small.
If x =0, then Quantity A is greater, so eliminate choices (B) and (C). If x = –1, though, then Quantity A = 0; Quantity B is now greater, so eliminate choice (A), and you’re left with choice (D).
