Answer:
I think the sides of polygon are 6
Step-by-step explanation:
Because to form a polygon we need to the first to form a horizontal and vertical line,to find the number in that line,and join the line based on the numbers given, then you will get a polygon with 6 side
Answer:

Step-by-step explanation:
Let's see if we can think of two numbers that multiply to be 3(-5)=-15
andd add up to be -2
How about -5 and 3? That work's! :)

Factor by grouping!

Answer:
5
Step-by-step explanation:
15-7 is 8 and then 8 - 3= 5
Answer: -(3 x + 5)
Simplify the following:
6 x - 9 x - 3 - 2
Grouping like terms, 6 x - 9 x - 3 - 2 = (6 x - 9 x) + (-3 - 2):
(6 x - 9 x) + (-3 - 2)
6 x - 9 x = -3 x:
-3 x + (-3 - 2)
-3 - 2 = -5:
-5 - 3 x
Factor -1 out of -3 x - 5:
Answer: -(3 x + 5)