Question

If x y z are the three factors of a^3-7a-6, then the value of x+y+z will be

Answer 1

a^3-7a-6 have roots x, y and z
x+y+z= -q/p
and q=0
pa^3+qa^2+ra+s=0
x+y+z=0

Answer 2

Answer:

3a

Step-by-step explanation:

(a+1)(a2−a−6)

(a+1)(a+2)(a−3)

Now, sum of factors

(a+1)+a+2+a−3=3a