Can someone please answer this question please answer it correctly and please show work please help me I need it

Answer:
-10
Step-by-step explanation:
this has pattern which subtract four for each space or subtract 8 for every two space.
10-8= 2
10-4= 6-4=2
you have to subtract 4 three times starting with 2
2-4= -2
-2-4= -6
-6-4=-10