If the product of the roots of ax^2+bx+c=0 is 9 and a,b,c are in A.P., then find the sum of its roots.

JEE Main Mathematics question

If the product of the roots of is and are in A.P., then find the sum of its roots.

Answer: -5

The product of the roots is , so . Since are

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Question ID VK-014197