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Eight less than the square of x is less than eight. Which of the follo
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16 Mar 2021, 06:31
16 Mar 2021, 06:31
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59% (00:45) correct
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Eight less than the square of x is less than eight. Which of the following expresses all possible values of x?
x < 8
x < 4
x < 0
–4 < x < 4
x > 4 or x < –4
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
x < 8
x < 4
x < 0
–4 < x < 4
x > 4 or x < –4
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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Re: Eight less than the square of x is less than eight. Which of the follo
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16 Mar 2021, 07:09
16 Mar 2021, 07:09
Carcass wrote:
Eight less than the square of x is less than eight. Which of the following expresses all possible values of x?
x < 8
x < 4
x < 0
–4 < x < 4
x > 4 or x < –4
x < 8
x < 4
x < 0
–4 < x < 4
x > 4 or x < –4
\(x^2 - 8 < 8\)
\(x^2 < 16\)
\(x^2 < (±4)^2\)
i.e. \(x\) lies between \(-4\) and \(4\)
Hence, option D
Re: Eight less than the square of x is less than eight. Which of the follo
[#permalink]
09 Apr 2022, 18:28
09 Apr 2022, 18:28
x^2 - 8 < 8
x^2 < 16
x < 4 or x > -4
x^2 < 16
x < 4 or x > -4
