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# y = (x+3)(x-2)(x+5), is x negative? (1) y = 0 (2) x does not

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VP
Joined: 06 Jun 2004
Posts: 1059
Location: CA
Followers: 2

Kudos [?]: 46 [0], given: 0

y = (x+3)(x-2)(x+5), is x negative? (1) y = 0 (2) x does not [#permalink]  06 Dec 2005, 01:10
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y = (x+3)(x-2)(x+5), is x negative?

(1) y = 0
(2) x does not equal to 2
Director
Joined: 14 Sep 2005
Posts: 994
Location: South Korea
Followers: 2

Kudos [?]: 42 [0], given: 0

y = (x+3)(x-2)(x+5), is x negative?

(1) y = 0
(2) x does not equal to 2

From statement 1:

If y equals 0, x should be -3, 2, or -5. x could be positive or negative.
Not sufficient.

From statement 2:

If x is not 2, x could be any number since y is not defined.
Not sufficient.

From statement 1 & 2:
If y equals 0 and x is not 2, x should be -3 or -5, both of which are negative.
Sufficient.

I pick (C).
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Auge um Auge, Zahn um Zahn !

Senior Manager
Joined: 03 Nov 2005
Posts: 397
Location: Chicago, IL
Followers: 3

Kudos [?]: 28 [0], given: 17

1. Solutions for equation x1=-3, x2=2, x3=-5 insufficinet.
2. insufficient.

Combining both, x=-3, -5 Sufficient to say x<0. C.
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