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Thread: quants problem

  1. #1
    Trying to make mom and pop proud
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    quants problem

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    Can anyone please tell me the answer to this question?

  2. #2
    Trying to make mom and pop proud
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    any help?

  3. #3
    Muzzled.
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    3*(-1)^2*x^2=9*(-1)^2*x^2
    3*x^2=9*x^2
    for it to be true x must be 0
    the answer is C

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    Eager!
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    D is right i think

  5. #5
    An Urch Guru Pundit Swami Sage GRE_Kickboxer's Avatar
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    The answer is C and can be reasoned out by logic. On the left side of the equation, 3 is not squared. On the right side of the equation, -3 is squared. Both sides of the equation square x.

    This means that the only way the two sides of the equation can be equal is if X is 0 because otherwise it is impossible to equate them.

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