pls explain this question

jsl: Master | Next Rank: 500 Posts; Posts: 203; Joined: Wed Jun 04, 2008 1:01 am; Location: Windsor; Thanked: 5 times; GMAT Score:650

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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agent47: Senior | Next Rank: 100 Posts; Posts: 73; Joined: Sat Apr 19, 2008 11:16 pm

by agent47 » Wed Jul 23, 2008 3:07 pm

yup thanks for Explanation OA is B

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