Question

If alfa and Beta are zero's of x² +5x+8 then the value of (alfa+beta ) is
(a) 5
(b)-5
(C) 8
(d) -8
​

Answer 1

Step-by-step explanation:

Ifαandβ are the zeros of x2+5x+8 then the value of (α+β) is. Solution : For ax2+bx+c, we have α+β=-ba. For x2+5x+8, we have α+β=-5.