Math 10 points, Easy i belive

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Can anyone me with 32,33,36,37,and 40.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.