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Question

For what value of p , x=3 will be a root of the equation px2+2x3=0


A

1/3

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B

3

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C

-3

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D

-1/3

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Solution

The correct option is D

-1/3


Putting x=3 in the given equation, we get,

p(9)+2(3)3=0

9p+63=0

p=13


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