Take x to be some negative value
If x is -2 then |x^2| /x = -2 which is x and not |x|
Hence II is not possible.
absolute value
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lunarpower
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cramya has it nailed.
here's the more general takeaway: make sure you know which number types are associated with which operations.
in this particular case, this means that you should see the absolute value, and make an instant connection with positive/negative/zero.
the other takeaway is that, if at all possible, you should immediately start plugging in numbers if you aren't 100% sure of the theoretical approach to a problem.
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finally, note that |x^2| is actually the same as just x^2, since x^2 can't be negative. therefore, this problem is merely asking you to divide x^2 by x, producing x.
here's the more general takeaway: make sure you know which number types are associated with which operations.
in this particular case, this means that you should see the absolute value, and make an instant connection with positive/negative/zero.
the other takeaway is that, if at all possible, you should immediately start plugging in numbers if you aren't 100% sure of the theoretical approach to a problem.
--
finally, note that |x^2| is actually the same as just x^2, since x^2 can't be negative. therefore, this problem is merely asking you to divide x^2 by x, producing x.
Ron has been teaching various standardized tests for 20 years.
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Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
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Pueden hacerle preguntas a Ron en castellano
Potete chiedere domande a Ron in italiano
On peut poser des questions à Ron en français
Voit esittää kysymyksiä Ron:lle myös suomeksi
--
Quand on se sent bien dans un vêtement, tout peut arriver. Un bon vêtement, c'est un passeport pour le bonheur.
Yves Saint-Laurent
--
Learn more about ron
