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pls explain this question

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Source: — Data Sufficiency |
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by jsl » Wed Jul 23, 2008 8:53 am
What is the OA? Is the answer B?

The first gives 2 results 0 and -2 because you can just treat it as a quadratic.

The second specifies a single value which cancels out all the x terms in the equation so you're left with -1.
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by agent47 » Wed Jul 23, 2008 3:07 pm
yup thanks for Explanation OA is B
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