If alpha & beta are the roots of ax2- bx + c=0 (a not equal to 0) ,then calculate alpha+beta

If alpha & beta are the roots of ax2- bx + c=0 (a not equal to 0) ,the

1.	If alpha & beta are the roots of ax2- bx + c=0 (a not equal to 0) ,then calculate alpha+beta
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