Help with 4 and 6
And is 5 correct?

Answer:
4) 0, -1, 1, 1, 1
5) correct
6) [tex]x = -2 \pm 2\sqrt5[/tex]
Step-by-step explanation:
4) fill in the previous sequence element in the next. This sequence gets "stuck" at 1.
6) use the quadratic formula.