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Question

If x2+3x+5=0 and ax2+bx+c=0 have a root in common and a, b, c ϵ N, then minimum value of a + b + c =


A

6

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B

8

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C

9

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D

1

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Solution

The correct option is C

9


Roots of x2+3x+5=0 are complex.
a1=b3=c5=λ a=3λb=3λc=5λa+b+c=9λ
Min value of a + b + c = 9


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