Question

If a and b are roots of x2+x+1=0 then a2+b2 is

Answer 1

hola amigo!
if a and b are roots
sum of roots  a+b= -b/a=-1
products of roots = c/a=1
 and,a²+b²=( a+b)²-2ab
                 =(1)-2x1
                 =1-2=-1

Answer 2

a+b= -b/a= -1
ab=c/a=1
a^2+b^2
=(a+b)^2-2ab
=(-1)^2-2(1)
=1-2
= -1
PLZ MARK IT AS BRAINLIEST