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d(d2 - 2d + 1)
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20 May 2018, 14:00
20 May 2018, 14:00
Expert Reply
00:00
Question Stats:
77% (00:28) correct
22% (01:47) wrong based on 18 sessions
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Quantity A |
Quantity B |
\(d(d^2 - 2d + 1)\) |
\(d(d^2 - 2d) + 1\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Re: d(d2 - 2d + 1)
[#permalink]
23 May 2018, 02:01
23 May 2018, 02:01
Expand qty A:
\(d^3 - 2d^2 +d\)
Expand qty B:
\(d^3 -2d^2 + 1\)
Adding \(-2d^2\) on both sides and then after subtracting \(d^3\) on both sides reduces the quantities to:
d and 1
d could be anything
option D
\(d^3 - 2d^2 +d\)
Expand qty B:
\(d^3 -2d^2 + 1\)
Adding \(-2d^2\) on both sides and then after subtracting \(d^3\) on both sides reduces the quantities to:
d and 1
d could be anything
option D
gmatclubot
Re: d(d2 - 2d + 1) [#permalink]
23 May 2018, 02:01
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