Difference between the corresponding roots of $x^2+a x+b=0$ and $x^2+b x+a=0$ is same and $a
eq b$, then

Question

Difference between the corresponding roots of $x^2+a x+b=0$ and $x^2+b x+a=0$ is same and $a 
eq b$, then

Difference between the corresponding roots of $x^2+a x+b=0$ and $x^2+b x+a=0$ is same and $a \neq b$, then