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Question

Solve for x:

3(9x)<8(3x)+3


A

(0,81)

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B

(,1)

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C

(,2)(2,1)(1,0)

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D

None of these.

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Solution

The correct option is B

(,1)


Put 3x=t to obtain
3t28t3<0(3t+1)(t3)<0As 3t+1>0, we get t<3 or x<1


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