Chapter 3.2, Problem 26E

e a big-Oestimate for each of these functions. For the function g in your estimate $f\left(x\right)$is $O\left(g\left(x\right)\right)$

1. , use a simple function g of smallest order.

   $\left(n^3+n^2\log n\right)\left(\log n+1\right)+\left(17\log n+19\right)\left(n^3+2\right)$

   $\left(2^n+n^2\right)\left(n^3+3^n\right)$

   $\left(n^n+n{2}^n+5^n\right)\left(n!+5^n\right)$