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If (x - 6) (2x + 1) = 0, and x > 0, then x =

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If (x - 6) (2x + 1) = 0, and x > 0, then x =  [#permalink]

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New post 19 Feb 2018, 21:55
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

89% (00:48) correct 11% (01:31) wrong based on 51 sessions

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Re: If (x - 6) (2x + 1) = 0, and x > 0, then x =  [#permalink]

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New post 19 Feb 2018, 22:05
1
(x-6)=0; x=6

OR

(2x+1)=0; x=\(\frac{-1}{2}\)

Since X>0

So x=6

Answer: A.
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If (x - 6) (2x + 1) = 0, and x > 0, then x =  [#permalink]

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New post 20 Feb 2018, 21:12
To get= (x - 6)(2x + 1) = 0 one of the equation should be equal to zero

(x-6) = 0 , to get this solution, there is only one logical value for x among the answer choice , X =6.

The other value (2x + 1) cannot be zero since X > 0 and all positive values of x will only result in positive value.

Ans: 6 (option A)
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If (x - 6) (2x + 1) = 0, and x > 0, then x = &nbs [#permalink] 20 Feb 2018, 21:12
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If (x - 6) (2x + 1) = 0, and x > 0, then x =

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