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# (-2)^8 or -(2)^8

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Moderator
Joined: 18 Apr 2015
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(-2)^8 or -(2)^8 [#permalink]  25 May 2018, 10:53
Expert's post
00:00

Question Stats:

100% (00:08) correct 0% (00:00) wrong based on 6 sessions
 Quantity A Quantity B $$(-2)^8$$ $$-(2)^8$$

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.
[Reveal] Spoiler: OA

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Joined: 20 Apr 2016
Posts: 761
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Kudos [?]: 518 [0], given: 94

Re: (-2)^8 or -(2)^8 [#permalink]  07 Jul 2018, 09:06
Carcass wrote:
 Quantity A Quantity B $$(-2)^8$$ $$-(2)^8$$

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.

Here,

Comparing QTY A and QTY B

QTY A = $$(-2)^8$$

QTY B = $$-(2)^8$$

We can write that QTY B will always be negative, as we are not squaring the negative sign and QTY A will always be positive, as the negative sign is under the bracket.

Hence QTY A > QTY B
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Re: (-2)^8 or -(2)^8   [#permalink] 07 Jul 2018, 09:06
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