SOLUTION: Determine the sum and product of the roots of 3y^2– 2y + 12 = 0 I need your help please. Thank you very much

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Question 411320: Determine the sum and product of the roots of 3y^2– 2y + 12 = 0
I need your help please.
Thank you very much
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

finding the roots using the quadratic formula

3y^2– 2y + 12 = 0

 x+=+%28-3+%2B-+sqrt%28+-140+%29%29%2F%286%29+

 x+=+%28-3+%2B-+i%2Asqrt%28+4%2A35+%29%29%2F%286%29+

 x+=+%28-3+%2B-+2i%2Asqrt%2835%29%29%2F%286%29+

    x = -.5 + 2isqrt(35)/6

    x = -.5 - 2isqrt(35)/6

Sum of the roots = -1

Product: .25 + 4*35/36 

Note i^2 = -1