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Absolute value [Pending...]

My question

If x = -|w|, which of the following MUST be true

A. x=-w
B. x=w
C. x^2=w
D. x^2=w^2
E. x^3=w^3

Why option (a) is not the correct answer? the question clearly says x=-|w|
which means
|w|=-x

and by definition, w=-x

regards

Relevant page

If x = -|w|, which of the following must be true : GMAT Problem Solving (PS)

What I've done so far

x=-|w|
=> |w|=-x
=> w=-x

or

w^2=x^2

i am stuck between A or D

X

If x = -|w|, which of the following MUST be true

A. x=-w
B. x=w
C. x^2=w
D. x^2=w^2
E. x^3=w^3

Why option (a) is not the correct answer? the question clearly says x=-|w|
which means
|w|=-x

and by definition, w=-x

regards
Relevant page

<a href="https://gmatclub.com/forum/if-x-w-which-of-the-following-must-be-true-218960.html">If x = -|w|, which of the following must be true : GMAT Problem Solving (PS)					</a>

What I've done so far

x=-|w|
=> |w|=-x
=> w=-x

or

w^2=x^2

i am stuck between A or D

Re: Absolute value

i also think te correct anwser sould be A-(x=-w)

X

i also think te correct anwser sould be A-(x=-w)

Re: Absolute value

@Mansoor: Sorry - I must have missed your question when it first came in.

With this kind of question, proceed as follows. Try some actual examples.

(i) w is positive

Try w = 3.

Which ones of a, b, c, d are correct?

(ii) w is negative

Try w = -5

Which ones of a, b, c, d are correct?

What's your conclusion?

X

@Mansoor: Sorry - I must have missed your question when it first came in.

With this kind of question, proceed as follows. Try some actual examples.

(i) w is positive

Try w = 3.

Which ones of a, b, c, d are correct?

(ii) w is negative

Try w = -5

Which ones of a, b, c, d are correct?

What's your conclusion?

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