Question

if 1,1,alpa are the roots of x3-6x2-9x +40 then find alpa​

Answer 1

Answer:

Comparing the given equation with a0x3+a1x2+a2x+a3=0, we get,

a0=1, a1=−6, a2=9, a3=−4

Product of roots 1.1.α=S3=a0−a3=14

∴α=4.