Question

if a and b are roots of the equation x2-x+1 then write value of a2+b

Answer 1

Value of a^2 + b is irrational

Answer 2

2x-x+1=[x-1][2x+1]

then x=1 or x= -1/2

therefore a=1 and b= -1/2

therefore 2a+b=2[1]+[-1]/2 = 2-1/2=3/2