synthetic division problem

Question

2n⁴-n³-2n+5

n²+2n+1

with synthetic division

Answer 1

n^2 + 2n + 1 = (n+1)^2 but that doesn't help any.

2n^4 -n^3 -2n + 5 divided by n^2 +2n+1 = 2n^2 -5n + 8, with remainder of -13n-3

Answer 2