Can you let me know if i’m doing this right if not me out

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Solve for n? [tex]z = \frac{3}{4} mn[/tex]