1) What is the big-O estimation for f(n) = (n3 + 2) (n + n2)?

2) What is the big- estimation for g(n) = nlog(n2 + 1) + n2logn?

1) O(n3) 2) (n3logn)

1) O(n) 2) (n2logn)

1) O(n5) 2) (logn)

1) O(n5) 2) (n2logn)

1) O(n4+n) 2) (nlogn)