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(x^2+9)(x+9)(x-5)=0
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19 Mar 2021, 06:39
19 Mar 2021, 06:39
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\((x^2+9)(x+9)(x-5)=0\)
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.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Quantity A |
Quantity B |
x |
7 |
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.
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(x^2+9)(x+9)(x-5)=0
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19 Mar 2021, 07:37
19 Mar 2021, 07:37
2
\((x^2+9)(x+9)(x-5)\)=0
\((x^2+9)\) can never be 0 so (x+9) or (x-5) or both has to be zero.
For the equation to be zero x will be 5 OR -9
Either value of x is less than 7.
Qt A < Qt B
Answer B
\((x^2+9)\) can never be 0 so (x+9) or (x-5) or both has to be zero.
For the equation to be zero x will be 5 OR -9
Either value of x is less than 7.
Qt A < Qt B
Answer B
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(x^2+9)(x+9)(x-5)=0
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19 Mar 2021, 07:58
19 Mar 2021, 07:58
1
Carcass wrote:
\((x^2+9)(x+9)(x-5)=0\)
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.
Quantity A |
Quantity B |
x |
7 |
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.
\((x^2+9)(x+9)(x-5)=0\)
[ \(x^2 + 9\) can never be a zero, because \(x^2 ≠ -9\) ]
Since, we can have either \((x+9) = 0\) or \((x-5) = 0\)
i.e. \(x = -9\) or \(x = 5\)
\(7\) would always be greater than \(5\) or \(-9\)
Hence, option B
