x(x-5)(x-2)=0, x=? 1) x*y is not zero 2) x^2-2x-15 is not : DS Archive
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# x(x-5)(x-2)=0, x=? 1) x*y is not zero 2) x^2-2x-15 is not

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Senior Manager
Joined: 08 Aug 2005
Posts: 251
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Kudos [?]: 49 [0], given: 0

x(x-5)(x-2)=0, x=? 1) x*y is not zero 2) x^2-2x-15 is not [#permalink]

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06 May 2006, 03:26
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x(x-5)(x-2)=0, x=?

1) x*y is not zero
2) x^2-2x-15 is not zero
Manager
Joined: 13 Dec 2005
Posts: 224
Location: Milwaukee,WI
Followers: 1

Kudos [?]: 8 [0], given: 0

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06 May 2006, 03:41
C

from 1 X * Y <>0 means X <> 0
from 2 X <>3 , X<>5

for x(x-5)(x-2)=0 either x = 0 or x =5 or x =2

from 1 and 2 it implies x =2

so C should be the answer
06 May 2006, 03:41
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