Question

what is yhe value of alpha +beta ​

Answer 1

Alpha plus beta = -b/a

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Answer 2

Answer:

$\tt{\alpha + \beta = - ba }$

Step-by-step explanation:

Sum and product of the roots.

Thus, if a quadratic has two real roots α,β, then the x-coordinate of the vertex is 12(α+β).

Now we also know that this quantity is equal to −b2a.

Thus we can express the sum of the roots in terms of the coefficients a,b,c of the quadratic as α+β=−ba.