Help me I really need to pass this

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

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?