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The integer a is greater than 1 and is not equal to the squ

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The integer a is greater than 1 and is not equal to the squ [#permalink] New post 21 Jun 2017, 13:48
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The integer a is greater than 1 and is not equal to the square of an integer. Which of the following answer choices could potentially be equal to the square of an integer?

Indicate all that apply.

\sqrt{a}

a^2 – 1

a^2 + 1

a^2 – a

a^2 – 2a + 1

2a

[Reveal] Spoiler: OA
E,F

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Kudos [?]: 124 [0], given: 64

Re: The integer a is greater than 1 and is not equal to the squ [#permalink] New post 12 Oct 2017, 02:04
Carcass wrote:


The integer a is greater than 1 and is not equal to the square of an integer. Which of the following answer choices could potentially be equal to the square of an integer?

Indicate all that apply.

\sqrt{a}

a^2 – 1

a^2 + 1

a^2 – a

a^2 – 2a + 1

2a

[Reveal] Spoiler: OA
E,F


What's the best strategy here?

I got the right answers but I decided to stop because I did not find examples for the other choices but it is not the best way to deal with it.
Re: The integer a is greater than 1 and is not equal to the squ   [#permalink] 12 Oct 2017, 02:04
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The integer a is greater than 1 and is not equal to the squ

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