Not quite sure about (1).
(1) basically says that x = -x and plugging that into the question, = x
The book says that the value of an absolute value can be 0 or x? Doesn't make sense!
Absolute Value confusion
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- rohit_gmat
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hi...Gurpinder wrote:Not quite sure about (1).
(1) basically says that x = -x and plugging that into the question, = x
The book says that the value of an absolute value can be 0 or x? Doesn't make sense!
i think stmnt 1 is basically sayin tht x is a negative number... e.g. -5 = - |-5| = - (+5) = -5
or maybe zero.... (-0 = 0) .... but since it can be any number, we cant find the value of |x|...
INSUFF
stmnt 2.. says x^2 = 4 ... so x = +2 or -2 .. but |x| = 2 ONLY ... SUFF
IMO B
- Gurpinder
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ahhh
so when a question asks for a value it has to be a SINGLE NUMERICAL value. it can't be a variable OR multiple values.
correct?
so when a question asks for a value it has to be a SINGLE NUMERICAL value. it can't be a variable OR multiple values.
correct?
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- Brent@GMATPrepNow
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Exactly. It must be a single numerical value.Gurpinder wrote:ahhh
so when a question asks for a value it has to be a SINGLE NUMERICAL value. it can't be a variable OR multiple values.
correct?
Cheers,
Brent