What are the factors of
x²+81

plz help me

Step-by-step explanation:

x²+81=0

x²-(-81)=0

x²-(81×-1)=0

x²-81i²=0

x²-(9i)²=0

x²=(9i)²

(x+9i)(x-9i)=0

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.