An oak tree, elm tree, and maple tree are standing in a park. the three trees are non-collinear. if the oak is 2 feet from the elm, the elm is 10 feet from the maple and the oak is 4 feet from the maple, do these three trees form a triangle?

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10