Is anyone able to show how you get from this line:<p>ΣnFib(n+2)x^(n+2)=ΣnFib(n+1)x^(n+2)+ΣnFib(n)x^(n+2)<p>to this one:<p>F(x)−x−1=x(F(x)−1)+x2F(x)<p>I haven&#x27;t managed to figure it out and have a couple of colleagues that haven&#x27;t been able to work it out as well.